Finding the Fourth Proportional to 2,302.50, 3,453.78 and 916.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,302.50 : 3,453.78 = 916.62 : x
2. Step 2: Convert to fraction form
   2,302.50/3,453.78 = 916.62/x
3. Step 3: Cross multiply
   2,302.50x = 3,453.78 × 916.62
4. Step 4: Simplify right side
   2,302.50x = 3,165,803.82
5. Step 5: Solve for x
   x = 3,165,803.82/2,302.50
6. Step 6: Final answer
   x = 1,374.94