Finding the Fourth Proportional to 1,421.80, 1,962.56 and 832.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.80 : 1,962.56 = 832.52 : x
2. Step 2: Convert to fraction form
   1,421.80/1,962.56 = 832.52/x
3. Step 3: Cross multiply
   1,421.80x = 1,962.56 × 832.52
4. Step 4: Simplify right side
   1,421.80x = 1,633,870.45
5. Step 5: Solve for x
   x = 1,633,870.45/1,421.80
6. Step 6: Final answer
   x = 1,149.16