Finding the Fourth Proportional to 3,925.30, 5,417.01 and 2,156.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,925.30 : 5,417.01 = 2,156.94 : x
2. Step 2: Convert to fraction form
   3,925.30/5,417.01 = 2,156.94/x
3. Step 3: Cross multiply
   3,925.30x = 5,417.01 × 2,156.94
4. Step 4: Simplify right side
   3,925.30x = 11,684,165.55
5. Step 5: Solve for x
   x = 11,684,165.55/3,925.30
6. Step 6: Final answer
   x = 2,976.63