Finding the Fourth Proportional to 1,087.77, 1,632.50 and 740.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.77 : 1,632.50 = 740.25 : x
2. Step 2: Convert to fraction form
   1,087.77/1,632.50 = 740.25/x
3. Step 3: Cross multiply
   1,087.77x = 1,632.50 × 740.25
4. Step 4: Simplify right side
   1,087.77x = 1,208,454.42
5. Step 5: Solve for x
   x = 1,208,454.42/1,087.77
6. Step 6: Final answer
   x = 1,110.95