Finding the Fourth Proportional to 2,425.77, 3,635.78 and 1,126.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.77 : 3,635.78 = 1,126.89 : x
2. Step 2: Convert to fraction form
   2,425.77/3,635.78 = 1,126.89/x
3. Step 3: Cross multiply
   2,425.77x = 3,635.78 × 1,126.89
4. Step 4: Simplify right side
   2,425.77x = 4,097,118.49
5. Step 5: Solve for x
   x = 4,097,118.49/2,425.77
6. Step 6: Final answer
   x = 1,689.00