Finding the Fourth Proportional to 1,426.91, 2,135.51 and 1,196.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.91 : 2,135.51 = 1,196.06 : x
2. Step 2: Convert to fraction form
   1,426.91/2,135.51 = 1,196.06/x
3. Step 3: Cross multiply
   1,426.91x = 2,135.51 × 1,196.06
4. Step 4: Simplify right side
   1,426.91x = 2,554,197.45
5. Step 5: Solve for x
   x = 2,554,197.45/1,426.91
6. Step 6: Final answer
   x = 1,790.02