Finding the Fourth Proportional to 1,074.69, 1,612.08 and 527.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.69 : 1,612.08 = 527.31 : x
2. Step 2: Convert to fraction form
   1,074.69/1,612.08 = 527.31/x
3. Step 3: Cross multiply
   1,074.69x = 1,612.08 × 527.31
4. Step 4: Simplify right side
   1,074.69x = 850,065.90
5. Step 5: Solve for x
   x = 850,065.90/1,074.69
6. Step 6: Final answer
   x = 790.99