Finding the Fourth Proportional to 2,587.83, 3,880.32 and 1,026.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.83 : 3,880.32 = 1,026.25 : x
2. Step 2: Convert to fraction form
   2,587.83/3,880.32 = 1,026.25/x
3. Step 3: Cross multiply
   2,587.83x = 3,880.32 × 1,026.25
4. Step 4: Simplify right side
   2,587.83x = 3,982,178.40
5. Step 5: Solve for x
   x = 3,982,178.40/2,587.83
6. Step 6: Final answer
   x = 1,538.81