Finding the Fourth Proportional to 2,397.81, 3,595.41 and 916.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,397.81 : 3,595.41 = 916.71 : x
2. Step 2: Convert to fraction form
   2,397.81/3,595.41 = 916.71/x
3. Step 3: Cross multiply
   2,397.81x = 3,595.41 × 916.71
4. Step 4: Simplify right side
   2,397.81x = 3,295,948.30
5. Step 5: Solve for x
   x = 3,295,948.30/2,397.81
6. Step 6: Final answer
   x = 1,374.57