Finding the Fourth Proportional to 2,916.53, 4,376.61 and 1,185.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,916.53 : 4,376.61 = 1,185.15 : x
2. Step 2: Convert to fraction form
   2,916.53/4,376.61 = 1,185.15/x
3. Step 3: Cross multiply
   2,916.53x = 4,376.61 × 1,185.15
4. Step 4: Simplify right side
   2,916.53x = 5,186,933.42
5. Step 5: Solve for x
   x = 5,186,933.42/2,916.53
6. Step 6: Final answer
   x = 1,778.46