Finding the Fourth Proportional to 1,618.47, 2,233.18 and 1,088.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.47 : 2,233.18 = 1,088.12 : x
2. Step 2: Convert to fraction form
   1,618.47/2,233.18 = 1,088.12/x
3. Step 3: Cross multiply
   1,618.47x = 2,233.18 × 1,088.12
4. Step 4: Simplify right side
   1,618.47x = 2,429,967.82
5. Step 5: Solve for x
   x = 2,429,967.82/1,618.47
6. Step 6: Final answer
   x = 1,501.40