Finding the Fourth Proportional to 2,377.45, 3,566.63 and 916.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.45 : 3,566.63 = 916.72 : x
2. Step 2: Convert to fraction form
   2,377.45/3,566.63 = 916.72/x
3. Step 3: Cross multiply
   2,377.45x = 3,566.63 × 916.72
4. Step 4: Simplify right side
   2,377.45x = 3,269,594.43
5. Step 5: Solve for x
   x = 3,269,594.43/2,377.45
6. Step 6: Final answer
   x = 1,375.25