Finding the Fourth Proportional to 2,483.31, 3,725.30 and 840.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.31 : 3,725.30 = 840.32 : x
2. Step 2: Convert to fraction form
   2,483.31/3,725.30 = 840.32/x
3. Step 3: Cross multiply
   2,483.31x = 3,725.30 × 840.32
4. Step 4: Simplify right side
   2,483.31x = 3,130,444.10
5. Step 5: Solve for x
   x = 3,130,444.10/2,483.31
6. Step 6: Final answer
   x = 1,260.59