Finding the Fourth Proportional to 2,500.64, 3,748.94 and 1,040.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.64 : 3,748.94 = 1,040.89 : x
2. Step 2: Convert to fraction form
   2,500.64/3,748.94 = 1,040.89/x
3. Step 3: Cross multiply
   2,500.64x = 3,748.94 × 1,040.89
4. Step 4: Simplify right side
   2,500.64x = 3,902,219.58
5. Step 5: Solve for x
   x = 3,902,219.58/2,500.64
6. Step 6: Final answer
   x = 1,560.49