Finding the Fourth Proportional to 587,978.52, 811,758.20 and 370,373.73

Step by Step Solution

1. Step 1: Write the proportion equation
   587,978.52 : 811,758.20 = 370,373.73 : x
2. Step 2: Convert to fraction form
   587,978.52/811,758.20 = 370,373.73/x
3. Step 3: Cross multiply
   587,978.52x = 811,758.20 × 370,373.73
4. Step 4: Simplify right side
   587,978.52x = 300,653,910,540.22
5. Step 5: Solve for x
   x = 300,653,910,540.22/587,978.52
6. Step 6: Final answer
   x = 511,334.85