Finding the Fourth Proportional to 2,869.36, 3,959.72 and 1,876.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.36 : 3,959.72 = 1,876.32 : x
2. Step 2: Convert to fraction form
   2,869.36/3,959.72 = 1,876.32/x
3. Step 3: Cross multiply
   2,869.36x = 3,959.72 × 1,876.32
4. Step 4: Simplify right side
   2,869.36x = 7,429,701.83
5. Step 5: Solve for x
   x = 7,429,701.83/2,869.36
6. Step 6: Final answer
   x = 2,589.32