Finding the Fourth Proportional to 647,066.71, 970,602.56 and 197,785.83

Step by Step Solution

1. Step 1: Write the proportion equation
   647,066.71 : 970,602.56 = 197,785.83 : x
2. Step 2: Convert to fraction form
   647,066.71/970,602.56 = 197,785.83/x
3. Step 3: Cross multiply
   647,066.71x = 970,602.56 × 197,785.83
4. Step 4: Simplify right side
   647,066.71x = 191,971,432,929.73
5. Step 5: Solve for x
   x = 191,971,432,929.73/647,066.71
6. Step 6: Final answer
   x = 296,679.51