Finding the Fourth Proportional to 1,498.01, 2,251.50 and 1,239.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.01 : 2,251.50 = 1,239.67 : x
2. Step 2: Convert to fraction form
   1,498.01/2,251.50 = 1,239.67/x
3. Step 3: Cross multiply
   1,498.01x = 2,251.50 × 1,239.67
4. Step 4: Simplify right side
   1,498.01x = 2,791,116.72
5. Step 5: Solve for x
   x = 2,791,116.72/1,498.01
6. Step 6: Final answer
   x = 1,863.22