Finding the Fourth Proportional to 1,505.64, 2,077.98 and 1,087.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,505.64 : 2,077.98 = 1,087.34 : x
2. Step 2: Convert to fraction form
   1,505.64/2,077.98 = 1,087.34/x
3. Step 3: Cross multiply
   1,505.64x = 2,077.98 × 1,087.34
4. Step 4: Simplify right side
   1,505.64x = 2,259,470.77
5. Step 5: Solve for x
   x = 2,259,470.77/1,505.64
6. Step 6: Final answer
   x = 1,500.67