Finding the Fourth Proportional to 1,583.69, 2,186.17 and 1,088.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.69 : 2,186.17 = 1,088.87 : x
2. Step 2: Convert to fraction form
   1,583.69/2,186.17 = 1,088.87/x
3. Step 3: Cross multiply
   1,583.69x = 2,186.17 × 1,088.87
4. Step 4: Simplify right side
   1,583.69x = 2,380,441.27
5. Step 5: Solve for x
   x = 2,380,441.27/1,583.69
6. Step 6: Final answer
   x = 1,503.10