Finding the Fourth Proportional to 3,671.31, 5,507.05 and 1,038.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,671.31 : 5,507.05 = 1,038.81 : x
2. Step 2: Convert to fraction form
   3,671.31/5,507.05 = 1,038.81/x
3. Step 3: Cross multiply
   3,671.31x = 5,507.05 × 1,038.81
4. Step 4: Simplify right side
   3,671.31x = 5,720,778.61
5. Step 5: Solve for x
   x = 5,720,778.61/3,671.31
6. Step 6: Final answer
   x = 1,558.24