Finding the Fourth Proportional to 2,400.56, 3,311.88 and 1,613.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,400.56 : 3,311.88 = 1,613.36 : x
2. Step 2: Convert to fraction form
   2,400.56/3,311.88 = 1,613.36/x
3. Step 3: Cross multiply
   2,400.56x = 3,311.88 × 1,613.36
4. Step 4: Simplify right side
   2,400.56x = 5,343,254.72
5. Step 5: Solve for x
   x = 5,343,254.72/2,400.56
6. Step 6: Final answer
   x = 2,225.84