Finding the Fourth Proportional to 2,864.06, 3,951.12 and 1,869.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,864.06 : 3,951.12 = 1,869.10 : x
2. Step 2: Convert to fraction form
   2,864.06/3,951.12 = 1,869.10/x
3. Step 3: Cross multiply
   2,864.06x = 3,951.12 × 1,869.10
4. Step 4: Simplify right side
   2,864.06x = 7,385,038.39
5. Step 5: Solve for x
   x = 7,385,038.39/2,864.06
6. Step 6: Final answer
   x = 2,578.52