Finding the Fourth Proportional to 1,146,088.35, 1,718,063.69 and 387,401.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146,088.35 : 1,718,063.69 = 387,401.94 : x
2. Step 2: Convert to fraction form
   1,146,088.35/1,718,063.69 = 387,401.94/x
3. Step 3: Cross multiply
   1,146,088.35x = 1,718,063.69 × 387,401.94
4. Step 4: Simplify right side
   1,146,088.35x = 665,581,204,612.55
5. Step 5: Solve for x
   x = 665,581,204,612.55/1,146,088.35
6. Step 6: Final answer
   x = 580,741.62