Finding the Fourth Proportional to 585,297, 807,709.86 and 317,025

Step by Step Solution

1. Step 1: Write the proportion equation
   585,297 : 807,709.86 = 317,025 : x
2. Step 2: Convert to fraction form
   585,297/807,709.86 = 317,025/x
3. Step 3: Cross multiply
   585,297x = 807,709.86 × 317,025
4. Step 4: Simplify right side
   585,297x = 256,064,218,366.50
5. Step 5: Solve for x
   x = 256,064,218,366.50/585,297
6. Step 6: Final answer
   x = 437,494.50