Finding the Fourth Proportional to 1,195.86, 1,782.05 and 1,156.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,195.86 : 1,782.05 = 1,156.71 : x
2. Step 2: Convert to fraction form
   1,195.86/1,782.05 = 1,156.71/x
3. Step 3: Cross multiply
   1,195.86x = 1,782.05 × 1,156.71
4. Step 4: Simplify right side
   1,195.86x = 2,061,317.95
5. Step 5: Solve for x
   x = 2,061,317.95/1,195.86
6. Step 6: Final answer
   x = 1,723.71