Finding the Fourth Proportional to 2,300.84, 3,452.63 and 840.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.84 : 3,452.63 = 840.09 : x
2. Step 2: Convert to fraction form
   2,300.84/3,452.63 = 840.09/x
3. Step 3: Cross multiply
   2,300.84x = 3,452.63 × 840.09
4. Step 4: Simplify right side
   2,300.84x = 2,900,519.94
5. Step 5: Solve for x
   x = 2,900,519.94/2,300.84
6. Step 6: Final answer
   x = 1,260.64