Finding the Fourth Proportional to 2,916.16, 4,371.80 and 1,271.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,916.16 : 4,371.80 = 1,271.47 : x
2. Step 2: Convert to fraction form
   2,916.16/4,371.80 = 1,271.47/x
3. Step 3: Cross multiply
   2,916.16x = 4,371.80 × 1,271.47
4. Step 4: Simplify right side
   2,916.16x = 5,558,612.55
5. Step 5: Solve for x
   x = 5,558,612.55/2,916.16
6. Step 6: Final answer
   x = 1,906.14