Finding the Fourth Proportional to 1,616.27, 2,231.31 and 1,087.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.27 : 2,231.31 = 1,087.93 : x
2. Step 2: Convert to fraction form
   1,616.27/2,231.31 = 1,087.93/x
3. Step 3: Cross multiply
   1,616.27x = 2,231.31 × 1,087.93
4. Step 4: Simplify right side
   1,616.27x = 2,427,503.65
5. Step 5: Solve for x
   x = 2,427,503.65/1,616.27
6. Step 6: Final answer
   x = 1,501.92