Finding the Fourth Proportional to 1,613.55, 2,225.16 and 1,053.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.55 : 2,225.16 = 1,053.81 : x
2. Step 2: Convert to fraction form
   1,613.55/2,225.16 = 1,053.81/x
3. Step 3: Cross multiply
   1,613.55x = 2,225.16 × 1,053.81
4. Step 4: Simplify right side
   1,613.55x = 2,344,895.86
5. Step 5: Solve for x
   x = 2,344,895.86/1,613.55
6. Step 6: Final answer
   x = 1,453.25