Finding the Fourth Proportional to 1,711.86, 2,362.49 and 1,291.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,711.86 : 2,362.49 = 1,291.47 : x
2. Step 2: Convert to fraction form
   1,711.86/2,362.49 = 1,291.47/x
3. Step 3: Cross multiply
   1,711.86x = 2,362.49 × 1,291.47
4. Step 4: Simplify right side
   1,711.86x = 3,051,084.96
5. Step 5: Solve for x
   x = 3,051,084.96/1,711.86
6. Step 6: Final answer
   x = 1,782.32