Finding the Fourth Proportional to 981,715.91, 1,472,575.89 and 271,746.05

Step by Step Solution

1. Step 1: Write the proportion equation
   981,715.91 : 1,472,575.89 = 271,746.05 : x
2. Step 2: Convert to fraction form
   981,715.91/1,472,575.89 = 271,746.05/x
3. Step 3: Cross multiply
   981,715.91x = 1,472,575.89 × 271,746.05
4. Step 4: Simplify right side
   981,715.91x = 400,166,681,432.73
5. Step 5: Solve for x
   x = 400,166,681,432.73/981,715.91
6. Step 6: Final answer
   x = 407,619.64