Finding the Fourth Proportional to 2,484.18, 3,725.67 and 840.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,484.18 : 3,725.67 = 840.69 : x
2. Step 2: Convert to fraction form
   2,484.18/3,725.67 = 840.69/x
3. Step 3: Cross multiply
   2,484.18x = 3,725.67 × 840.69
4. Step 4: Simplify right side
   2,484.18x = 3,132,133.51
5. Step 5: Solve for x
   x = 3,132,133.51/2,484.18
6. Step 6: Final answer
   x = 1,260.83