Finding the Fourth Proportional to 1,150.02, 1,587.23 and 677.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.02 : 1,587.23 = 677.88 : x
2. Step 2: Convert to fraction form
   1,150.02/1,587.23 = 677.88/x
3. Step 3: Cross multiply
   1,150.02x = 1,587.23 × 677.88
4. Step 4: Simplify right side
   1,150.02x = 1,075,958.70
5. Step 5: Solve for x
   x = 1,075,958.70/1,150.02
6. Step 6: Final answer
   x = 935.60