Finding the Fourth Proportional to 1,498.24, 2,236.27 and 1,405.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.24 : 2,236.27 = 1,405.90 : x
2. Step 2: Convert to fraction form
   1,498.24/2,236.27 = 1,405.90/x
3. Step 3: Cross multiply
   1,498.24x = 2,236.27 × 1,405.90
4. Step 4: Simplify right side
   1,498.24x = 3,143,964.96
5. Step 5: Solve for x
   x = 3,143,964.96/1,498.24
6. Step 6: Final answer
   x = 2,098.44