Finding the Fourth Proportional to 672,926.16, 928,573.56 and 371,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   672,926.16 : 928,573.56 = 371,100.72 : x
2. Step 2: Convert to fraction form
   672,926.16/928,573.56 = 371,100.72/x
3. Step 3: Cross multiply
   672,926.16x = 928,573.56 × 371,100.72
4. Step 4: Simplify right side
   672,926.16x = 344,594,316,688.96
5. Step 5: Solve for x
   x = 344,594,316,688.96/672,926.16
6. Step 6: Final answer
   x = 512,083.40