Finding the Fourth Proportional to 1,103,938.47, 1,523,478.27 and 620,502.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103,938.47 : 1,523,478.27 = 620,502.12 : x
2. Step 2: Convert to fraction form
   1,103,938.47/1,523,478.27 = 620,502.12/x
3. Step 3: Cross multiply
   1,103,938.47x = 1,523,478.27 × 620,502.12
4. Step 4: Simplify right side
   1,103,938.47x = 945,321,498,635.82
5. Step 5: Solve for x
   x = 945,321,498,635.82/1,103,938.47
6. Step 6: Final answer
   x = 856,317.20