Finding the Fourth Proportional to 1,932.30, 2,894.61 and 1,440.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,932.30 : 2,894.61 = 1,440.23 : x
2. Step 2: Convert to fraction form
   1,932.30/2,894.61 = 1,440.23/x
3. Step 3: Cross multiply
   1,932.30x = 2,894.61 × 1,440.23
4. Step 4: Simplify right side
   1,932.30x = 4,168,889.72
5. Step 5: Solve for x
   x = 4,168,889.72/1,932.30
6. Step 6: Final answer
   x = 2,157.47