Finding the Fourth Proportional to 1,613.20, 2,225.82 and 1,023.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.20 : 2,225.82 = 1,023.52 : x
2. Step 2: Convert to fraction form
   1,613.20/2,225.82 = 1,023.52/x
3. Step 3: Cross multiply
   1,613.20x = 2,225.82 × 1,023.52
4. Step 4: Simplify right side
   1,613.20x = 2,278,165.72
5. Step 5: Solve for x
   x = 2,278,165.72/1,613.20
6. Step 6: Final answer
   x = 1,412.21