Finding the Fourth Proportional to 3,637.31, 5,456.91 and 1,040.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,637.31 : 5,456.91 = 1,040.45 : x
2. Step 2: Convert to fraction form
   3,637.31/5,456.91 = 1,040.45/x
3. Step 3: Cross multiply
   3,637.31x = 5,456.91 × 1,040.45
4. Step 4: Simplify right side
   3,637.31x = 5,677,642.01
5. Step 5: Solve for x
   x = 5,677,642.01/3,637.31
6. Step 6: Final answer
   x = 1,560.95