Finding the Fourth Proportional to 1,647.72, 2,274.39 and 1,088.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.72 : 2,274.39 = 1,088.69 : x
2. Step 2: Convert to fraction form
   1,647.72/2,274.39 = 1,088.69/x
3. Step 3: Cross multiply
   1,647.72x = 2,274.39 × 1,088.69
4. Step 4: Simplify right side
   1,647.72x = 2,476,097.24
5. Step 5: Solve for x
   x = 2,476,097.24/1,647.72
6. Step 6: Final answer
   x = 1,502.74