Finding the Fourth Proportional to 604,002.42, 905,187.15 and 266,985.72

Step by Step Solution

1. Step 1: Write the proportion equation
   604,002.42 : 905,187.15 = 266,985.72 : x
2. Step 2: Convert to fraction form
   604,002.42/905,187.15 = 266,985.72/x
3. Step 3: Cross multiply
   604,002.42x = 905,187.15 × 266,985.72
4. Step 4: Simplify right side
   604,002.42x = 241,672,042,977.50
5. Step 5: Solve for x
   x = 241,672,042,977.50/604,002.42
6. Step 6: Final answer
   x = 400,117.67