Finding the Fourth Proportional to 2,865.30, 3,954.72 and 1,868.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,865.30 : 3,954.72 = 1,868.79 : x
2. Step 2: Convert to fraction form
   2,865.30/3,954.72 = 1,868.79/x
3. Step 3: Cross multiply
   2,865.30x = 3,954.72 × 1,868.79
4. Step 4: Simplify right side
   2,865.30x = 7,390,541.19
5. Step 5: Solve for x
   x = 7,390,541.19/2,865.30
6. Step 6: Final answer
   x = 2,579.33