Finding the Fourth Proportional to 1,443.42, 1,988.80 and 1,402.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.42 : 1,988.80 = 1,402.41 : x
2. Step 2: Convert to fraction form
   1,443.42/1,988.80 = 1,402.41/x
3. Step 3: Cross multiply
   1,443.42x = 1,988.80 × 1,402.41
4. Step 4: Simplify right side
   1,443.42x = 2,789,124.85
5. Step 5: Solve for x
   x = 2,789,124.85/1,443.42
6. Step 6: Final answer
   x = 1,932.30