Finding the Fourth Proportional to 2,321.58, 3,479.10 and 1,282.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.58 : 3,479.10 = 1,282.05 : x
2. Step 2: Convert to fraction form
   2,321.58/3,479.10 = 1,282.05/x
3. Step 3: Cross multiply
   2,321.58x = 3,479.10 × 1,282.05
4. Step 4: Simplify right side
   2,321.58x = 4,460,388.85
5. Step 5: Solve for x
   x = 4,460,388.85/2,321.58
6. Step 6: Final answer
   x = 1,921.27