Finding the Fourth Proportional to 1,368.16, 1,884.67 and 1,088.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.16 : 1,884.67 = 1,088.31 : x
2. Step 2: Convert to fraction form
   1,368.16/1,884.67 = 1,088.31/x
3. Step 3: Cross multiply
   1,368.16x = 1,884.67 × 1,088.31
4. Step 4: Simplify right side
   1,368.16x = 2,051,105.21
5. Step 5: Solve for x
   x = 2,051,105.21/1,368.16
6. Step 6: Final answer
   x = 1,499.17