Finding the Fourth Proportional to 2,191.84, 3,285.48 and 959.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.84 : 3,285.48 = 959.02 : x
2. Step 2: Convert to fraction form
   2,191.84/3,285.48 = 959.02/x
3. Step 3: Cross multiply
   2,191.84x = 3,285.48 × 959.02
4. Step 4: Simplify right side
   2,191.84x = 3,150,841.03
5. Step 5: Solve for x
   x = 3,150,841.03/2,191.84
6. Step 6: Final answer
   x = 1,437.53