Finding the Fourth Proportional to 2,345.88, 3,237.15 and 1,449.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.88 : 3,237.15 = 1,449.21 : x
2. Step 2: Convert to fraction form
   2,345.88/3,237.15 = 1,449.21/x
3. Step 3: Cross multiply
   2,345.88x = 3,237.15 × 1,449.21
4. Step 4: Simplify right side
   2,345.88x = 4,691,310.15
5. Step 5: Solve for x
   x = 4,691,310.15/2,345.88
6. Step 6: Final answer
   x = 1,999.81