Finding the Fourth Proportional to 1,421.75, 1,962.27 and 1,359.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.75 : 1,962.27 = 1,359.48 : x
2. Step 2: Convert to fraction form
   1,421.75/1,962.27 = 1,359.48/x
3. Step 3: Cross multiply
   1,421.75x = 1,962.27 × 1,359.48
4. Step 4: Simplify right side
   1,421.75x = 2,667,666.82
5. Step 5: Solve for x
   x = 2,667,666.82/1,421.75
6. Step 6: Final answer
   x = 1,876.33