Finding the Fourth Proportional to 2,500.13, 3,748.88 and 1,266.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.13 : 3,748.88 = 1,266.30 : x
2. Step 2: Convert to fraction form
   2,500.13/3,748.88 = 1,266.30/x
3. Step 3: Cross multiply
   2,500.13x = 3,748.88 × 1,266.30
4. Step 4: Simplify right side
   2,500.13x = 4,747,209.91
5. Step 5: Solve for x
   x = 4,747,209.91/2,500.13
6. Step 6: Final answer
   x = 1,898.78