Finding the Fourth Proportional to 2,476.49, 3,716.22 and 916.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,476.49 : 3,716.22 = 916.23 : x
2. Step 2: Convert to fraction form
   2,476.49/3,716.22 = 916.23/x
3. Step 3: Cross multiply
   2,476.49x = 3,716.22 × 916.23
4. Step 4: Simplify right side
   2,476.49x = 3,404,915.69
5. Step 5: Solve for x
   x = 3,404,915.69/2,476.49
6. Step 6: Final answer
   x = 1,374.89