Finding the Fourth Proportional to 2,087.52, 2,880.78 and 1,156.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.52 : 2,880.78 = 1,156.02 : x
2. Step 2: Convert to fraction form
   2,087.52/2,880.78 = 1,156.02/x
3. Step 3: Cross multiply
   2,087.52x = 2,880.78 × 1,156.02
4. Step 4: Simplify right side
   2,087.52x = 3,330,239.30
5. Step 5: Solve for x
   x = 3,330,239.30/2,087.52
6. Step 6: Final answer
   x = 1,595.31