Finding the Fourth Proportional to 1,317,066.72, 1,817,560.80 and 713,454.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317,066.72 : 1,817,560.80 = 713,454.72 : x
2. Step 2: Convert to fraction form
   1,317,066.72/1,817,560.80 = 713,454.72/x
3. Step 3: Cross multiply
   1,317,066.72x = 1,817,560.80 × 713,454.72
4. Step 4: Simplify right side
   1,317,066.72x = 1,296,747,331,646.98
5. Step 5: Solve for x
   x = 1,296,747,331,646.98/1,317,066.72
6. Step 6: Final answer
   x = 984,572.24