Finding the Fourth Proportional to 2,493.80, 3,440.04 and 1,445.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,493.80 : 3,440.04 = 1,445.72 : x
2. Step 2: Convert to fraction form
   2,493.80/3,440.04 = 1,445.72/x
3. Step 3: Cross multiply
   2,493.80x = 3,440.04 × 1,445.72
4. Step 4: Simplify right side
   2,493.80x = 4,973,334.63
5. Step 5: Solve for x
   x = 4,973,334.63/2,493.80
6. Step 6: Final answer
   x = 1,994.28