Finding the Fourth Proportional to 2,661.52, 3,672.28 and 1,613.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.52 : 3,672.28 = 1,613.40 : x
2. Step 2: Convert to fraction form
   2,661.52/3,672.28 = 1,613.40/x
3. Step 3: Cross multiply
   2,661.52x = 3,672.28 × 1,613.40
4. Step 4: Simplify right side
   2,661.52x = 5,924,856.55
5. Step 5: Solve for x
   x = 5,924,856.55/2,661.52
6. Step 6: Final answer
   x = 2,226.12