Finding the Fourth Proportional to 1,905,142.56, 2,629,130.64 and 1,045,782.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905,142.56 : 2,629,130.64 = 1,045,782.72 : x
2. Step 2: Convert to fraction form
   1,905,142.56/2,629,130.64 = 1,045,782.72/x
3. Step 3: Cross multiply
   1,905,142.56x = 2,629,130.64 × 1,045,782.72
4. Step 4: Simplify right side
   1,905,142.56x = 2,749,499,391,934.54
5. Step 5: Solve for x
   x = 2,749,499,391,934.54/1,905,142.56
6. Step 6: Final answer
   x = 1,443,198.77