Finding the Fourth Proportional to 2,191.62, 3,287.30 and 730.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.62 : 3,287.30 = 730.38 : x
2. Step 2: Convert to fraction form
   2,191.62/3,287.30 = 730.38/x
3. Step 3: Cross multiply
   2,191.62x = 3,287.30 × 730.38
4. Step 4: Simplify right side
   2,191.62x = 2,400,978.17
5. Step 5: Solve for x
   x = 2,400,978.17/2,191.62
6. Step 6: Final answer
   x = 1,095.53