Finding the Fourth Proportional to 2,300.96, 3,452.12 and 840.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.96 : 3,452.12 = 840.32 : x
2. Step 2: Convert to fraction form
   2,300.96/3,452.12 = 840.32/x
3. Step 3: Cross multiply
   2,300.96x = 3,452.12 × 840.32
4. Step 4: Simplify right side
   2,300.96x = 2,900,885.48
5. Step 5: Solve for x
   x = 2,900,885.48/2,300.96
6. Step 6: Final answer
   x = 1,260.73