Finding the Fourth Proportional to 1,498.82, 2,246.94 and 840.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.82 : 2,246.94 = 840.16 : x
2. Step 2: Convert to fraction form
   1,498.82/2,246.94 = 840.16/x
3. Step 3: Cross multiply
   1,498.82x = 2,246.94 × 840.16
4. Step 4: Simplify right side
   1,498.82x = 1,887,787.86
5. Step 5: Solve for x
   x = 1,887,787.86/1,498.82
6. Step 6: Final answer
   x = 1,259.52