Finding the Fourth Proportional to 2,115.79, 3,171.52 and 1,498.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115.79 : 3,171.52 = 1,498.03 : x
2. Step 2: Convert to fraction form
   2,115.79/3,171.52 = 1,498.03/x
3. Step 3: Cross multiply
   2,115.79x = 3,171.52 × 1,498.03
4. Step 4: Simplify right side
   2,115.79x = 4,751,026.05
5. Step 5: Solve for x
   x = 4,751,026.05/2,115.79
6. Step 6: Final answer
   x = 2,245.51