Finding the Fourth Proportional to 1,243,980.96, 1,716,035.32 and 856,123.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,980.96 : 1,716,035.32 = 856,123.02 : x
2. Step 2: Convert to fraction form
   1,243,980.96/1,716,035.32 = 856,123.02/x
3. Step 3: Cross multiply
   1,243,980.96x = 1,716,035.32 × 856,123.02
4. Step 4: Simplify right side
   1,243,980.96x = 1,469,137,332,004.89
5. Step 5: Solve for x
   x = 1,469,137,332,004.89/1,243,980.96
6. Step 6: Final answer
   x = 1,180,996.64