Finding the Fourth Proportional to 2,340.32, 3,510.86 and 879.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.32 : 3,510.86 = 879.59 : x
2. Step 2: Convert to fraction form
   2,340.32/3,510.86 = 879.59/x
3. Step 3: Cross multiply
   2,340.32x = 3,510.86 × 879.59
4. Step 4: Simplify right side
   2,340.32x = 3,088,117.35
5. Step 5: Solve for x
   x = 3,088,117.35/2,340.32
6. Step 6: Final answer
   x = 1,319.53