Finding the Fourth Proportional to 3,613.12, 5,417.76 and 1,663.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.12 : 5,417.76 = 1,663.62 : x
2. Step 2: Convert to fraction form
   3,613.12/5,417.76 = 1,663.62/x
3. Step 3: Cross multiply
   3,613.12x = 5,417.76 × 1,663.62
4. Step 4: Simplify right side
   3,613.12x = 9,013,093.89
5. Step 5: Solve for x
   x = 9,013,093.89/3,613.12
6. Step 6: Final answer
   x = 2,494.55