Finding the Fourth Proportional to 3,381.52, 5,071.50 and 916.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,381.52 : 5,071.50 = 916.53 : x
2. Step 2: Convert to fraction form
   3,381.52/5,071.50 = 916.53/x
3. Step 3: Cross multiply
   3,381.52x = 5,071.50 × 916.53
4. Step 4: Simplify right side
   3,381.52x = 4,648,177.31
5. Step 5: Solve for x
   x = 4,648,177.31/3,381.52
6. Step 6: Final answer
   x = 1,374.58