Finding the Fourth Proportional to 2,191.86, 3,024.65 and 1,247.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.86 : 3,024.65 = 1,247.54 : x
2. Step 2: Convert to fraction form
   2,191.86/3,024.65 = 1,247.54/x
3. Step 3: Cross multiply
   2,191.86x = 3,024.65 × 1,247.54
4. Step 4: Simplify right side
   2,191.86x = 3,773,359.86
5. Step 5: Solve for x
   x = 3,773,359.86/2,191.86
6. Step 6: Final answer
   x = 1,721.53