Finding the Fourth Proportional to 3,558.58, 5,339.69 and 1,916.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,558.58 : 5,339.69 = 1,916.71 : x
2. Step 2: Convert to fraction form
   3,558.58/5,339.69 = 1,916.71/x
3. Step 3: Cross multiply
   3,558.58x = 5,339.69 × 1,916.71
4. Step 4: Simplify right side
   3,558.58x = 10,234,621.47
5. Step 5: Solve for x
   x = 10,234,621.47/3,558.58
6. Step 6: Final answer
   x = 2,876.04