Finding the Fourth Proportional to 1,275.36, 1,758.42 and 1,088.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,275.36 : 1,758.42 = 1,088.52 : x
2. Step 2: Convert to fraction form
   1,275.36/1,758.42 = 1,088.52/x
3. Step 3: Cross multiply
   1,275.36x = 1,758.42 × 1,088.52
4. Step 4: Simplify right side
   1,275.36x = 1,914,075.34
5. Step 5: Solve for x
   x = 1,914,075.34/1,275.36
6. Step 6: Final answer
   x = 1,500.81