Finding the Fourth Proportional to 2,131,213.28, 3,196,434.76 and 614,523.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,213.28 : 3,196,434.76 = 614,523.31 : x
2. Step 2: Convert to fraction form
   2,131,213.28/3,196,434.76 = 614,523.31/x
3. Step 3: Cross multiply
   2,131,213.28x = 3,196,434.76 × 614,523.31
4. Step 4: Simplify right side
   2,131,213.28x = 1,964,283,659,386.86
5. Step 5: Solve for x
   x = 1,964,283,659,386.86/2,131,213.28
6. Step 6: Final answer
   x = 921,673.90