Finding the Fourth Proportional to 2,290.88, 3,162.34 and 1,731.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.88 : 3,162.34 = 1,731.48 : x
2. Step 2: Convert to fraction form
   2,290.88/3,162.34 = 1,731.48/x
3. Step 3: Cross multiply
   2,290.88x = 3,162.34 × 1,731.48
4. Step 4: Simplify right side
   2,290.88x = 5,475,518.77
5. Step 5: Solve for x
   x = 5,475,518.77/2,290.88
6. Step 6: Final answer
   x = 2,390.14