Finding the Fourth Proportional to 2,087.88, 2,881.45 and 1,156.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.88 : 2,881.45 = 1,156.56 : x
2. Step 2: Convert to fraction form
   2,087.88/2,881.45 = 1,156.56/x
3. Step 3: Cross multiply
   2,087.88x = 2,881.45 × 1,156.56
4. Step 4: Simplify right side
   2,087.88x = 3,332,569.81
5. Step 5: Solve for x
   x = 3,332,569.81/2,087.88
6. Step 6: Final answer
   x = 1,596.15