Finding the Fourth Proportional to 718,870.01, 1,077,736.85 and 358,856.09

Step by Step Solution

1. Step 1: Write the proportion equation
   718,870.01 : 1,077,736.85 = 358,856.09 : x
2. Step 2: Convert to fraction form
   718,870.01/1,077,736.85 = 358,856.09/x
3. Step 3: Cross multiply
   718,870.01x = 1,077,736.85 × 358,856.09
4. Step 4: Simplify right side
   718,870.01x = 386,752,434,285.69
5. Step 5: Solve for x
   x = 386,752,434,285.69/718,870.01
6. Step 6: Final answer
   x = 538,000.51