Finding the Fourth Proportional to 828,072.31, 1,142,744.56 and 465,492.98

Step by Step Solution

1. Step 1: Write the proportion equation
   828,072.31 : 1,142,744.56 = 465,492.98 : x
2. Step 2: Convert to fraction form
   828,072.31/1,142,744.56 = 465,492.98/x
3. Step 3: Cross multiply
   828,072.31x = 1,142,744.56 × 465,492.98
4. Step 4: Simplify right side
   828,072.31x = 531,939,572,306.32
5. Step 5: Solve for x
   x = 531,939,572,306.32/828,072.31
6. Step 6: Final answer
   x = 642,383.00