Finding the Fourth Proportional to 1,773.39, 2,445.48 and 1,440.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.39 : 2,445.48 = 1,440.48 : x
2. Step 2: Convert to fraction form
   1,773.39/2,445.48 = 1,440.48/x
3. Step 3: Cross multiply
   1,773.39x = 2,445.48 × 1,440.48
4. Step 4: Simplify right side
   1,773.39x = 3,522,665.03
5. Step 5: Solve for x
   x = 3,522,665.03/1,773.39
6. Step 6: Final answer
   x = 1,986.40