Finding the Fourth Proportional to 2,870.60, 4,284.97 and 2,525

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.60 : 4,284.97 = 2,525 : x
2. Step 2: Convert to fraction form
   2,870.60/4,284.97 = 2,525/x
3. Step 3: Cross multiply
   2,870.60x = 4,284.97 × 2,525
4. Step 4: Simplify right side
   2,870.60x = 10,819,549.25
5. Step 5: Solve for x
   x = 10,819,549.25/2,870.60
6. Step 6: Final answer
   x = 3,769.09