Finding the Fourth Proportional to 1,107,622,131.72, 1,528,989,185.94 and 690,140,682.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,107,622,131.72 : 1,528,989,185.94 = 690,140,682.54 : x
2. Step 2: Convert to fraction form
   1,107,622,131.72/1,528,989,185.94 = 690,140,682.54/x
3. Step 3: Cross multiply
   1,107,622,131.72x = 1,528,989,185.94 × 690,140,682.54
4. Step 4: Simplify right side
   1,107,622,131.72x = 1,055,217,640,380,910,592
5. Step 5: Solve for x
   x = 1,055,217,640,380,910,592/1,107,622,131.72
6. Step 6: Final answer
   x = 952,687,392.35