Finding the Fourth Proportional to 1,074.60, 1,613.25 and 527.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.60 : 1,613.25 = 527.31 : x
2. Step 2: Convert to fraction form
   1,074.60/1,613.25 = 527.31/x
3. Step 3: Cross multiply
   1,074.60x = 1,613.25 × 527.31
4. Step 4: Simplify right side
   1,074.60x = 850,682.86
5. Step 5: Solve for x
   x = 850,682.86/1,074.60
6. Step 6: Final answer
   x = 791.63