Finding the Fourth Proportional to 1,613.07, 2,224.82 and 1,116.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.07 : 2,224.82 = 1,116.54 : x
2. Step 2: Convert to fraction form
   1,613.07/2,224.82 = 1,116.54/x
3. Step 3: Cross multiply
   1,613.07x = 2,224.82 × 1,116.54
4. Step 4: Simplify right side
   1,613.07x = 2,484,094.94
5. Step 5: Solve for x
   x = 2,484,094.94/1,613.07
6. Step 6: Final answer
   x = 1,539.98