Finding the Fourth Proportional to 2,876.91, 4,317.18 and 1,646.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,876.91 : 4,317.18 = 1,646.72 : x
2. Step 2: Convert to fraction form
   2,876.91/4,317.18 = 1,646.72/x
3. Step 3: Cross multiply
   2,876.91x = 4,317.18 × 1,646.72
4. Step 4: Simplify right side
   2,876.91x = 7,109,186.65
5. Step 5: Solve for x
   x = 7,109,186.65/2,876.91
6. Step 6: Final answer
   x = 2,471.12