Finding the Fourth Proportional to 2,819.32, 3,890.52 and 1,543.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.32 : 3,890.52 = 1,543.17 : x
2. Step 2: Convert to fraction form
   2,819.32/3,890.52 = 1,543.17/x
3. Step 3: Cross multiply
   2,819.32x = 3,890.52 × 1,543.17
4. Step 4: Simplify right side
   2,819.32x = 6,003,714.30
5. Step 5: Solve for x
   x = 6,003,714.30/2,819.32
6. Step 6: Final answer
   x = 2,129.49