Finding the Fourth Proportional to 2,671.56, 4,004.52 and 916.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.56 : 4,004.52 = 916.02 : x
2. Step 2: Convert to fraction form
   2,671.56/4,004.52 = 916.02/x
3. Step 3: Cross multiply
   2,671.56x = 4,004.52 × 916.02
4. Step 4: Simplify right side
   2,671.56x = 3,668,220.41
5. Step 5: Solve for x
   x = 3,668,220.41/2,671.56
6. Step 6: Final answer
   x = 1,373.06