Finding the Fourth Proportional to 3,637.89, 5,456.88 and 1,040.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,637.89 : 5,456.88 = 1,040.76 : x
2. Step 2: Convert to fraction form
   3,637.89/5,456.88 = 1,040.76/x
3. Step 3: Cross multiply
   3,637.89x = 5,456.88 × 1,040.76
4. Step 4: Simplify right side
   3,637.89x = 5,679,302.43
5. Step 5: Solve for x
   x = 5,679,302.43/3,637.89
6. Step 6: Final answer
   x = 1,561.15