Finding the Fourth Proportional to 3,671.52, 5,508.16 and 1,074.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,671.52 : 5,508.16 = 1,074.40 : x
2. Step 2: Convert to fraction form
   3,671.52/5,508.16 = 1,074.40/x
3. Step 3: Cross multiply
   3,671.52x = 5,508.16 × 1,074.40
4. Step 4: Simplify right side
   3,671.52x = 5,917,967.10
5. Step 5: Solve for x
   x = 5,917,967.10/3,671.52
6. Step 6: Final answer
   x = 1,611.86