Finding the Fourth Proportional to 3,635.31, 5,453.91 and 1,038.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,635.31 : 5,453.91 = 1,038.45 : x
2. Step 2: Convert to fraction form
   3,635.31/5,453.91 = 1,038.45/x
3. Step 3: Cross multiply
   3,635.31x = 5,453.91 × 1,038.45
4. Step 4: Simplify right side
   3,635.31x = 5,663,607.65
5. Step 5: Solve for x
   x = 5,663,607.65/3,635.31
6. Step 6: Final answer
   x = 1,557.94