Finding the Fourth Proportional to 755,638.89, 1,042,766.74 and 411,479.05

Step by Step Solution

1. Step 1: Write the proportion equation
   755,638.89 : 1,042,766.74 = 411,479.05 : x
2. Step 2: Convert to fraction form
   755,638.89/1,042,766.74 = 411,479.05/x
3. Step 3: Cross multiply
   755,638.89x = 1,042,766.74 × 411,479.05
4. Step 4: Simplify right side
   755,638.89x = 429,076,665,489.40
5. Step 5: Solve for x
   x = 429,076,665,489.40/755,638.89
6. Step 6: Final answer
   x = 567,832.96