Finding the Fourth Proportional to 2,105,689.83, 2,905,851.97 and 1,138,820.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,689.83 : 2,905,851.97 = 1,138,820.12 : x
2. Step 2: Convert to fraction form
   2,105,689.83/2,905,851.97 = 1,138,820.12/x
3. Step 3: Cross multiply
   2,105,689.83x = 2,905,851.97 × 1,138,820.12
4. Step 4: Simplify right side
   2,105,689.83x = 3,309,242,671,801.33
5. Step 5: Solve for x
   x = 3,309,242,671,801.33/2,105,689.83
6. Step 6: Final answer
   x = 1,571,571.76