Finding the Fourth Proportional to 2,301.35, 3,452.00 and 840.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.35 : 3,452.00 = 840.15 : x
2. Step 2: Convert to fraction form
   2,301.35/3,452.00 = 840.15/x
3. Step 3: Cross multiply
   2,301.35x = 3,452.00 × 840.15
4. Step 4: Simplify right side
   2,301.35x = 2,900,193.60
5. Step 5: Solve for x
   x = 2,900,193.60/2,301.35
6. Step 6: Final answer
   x = 1,260.22