Finding the Fourth Proportional to 1,962.86, 2,708.61 and 1,123.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,962.86 : 2,708.61 = 1,123.57 : x
2. Step 2: Convert to fraction form
   1,962.86/2,708.61 = 1,123.57/x
3. Step 3: Cross multiply
   1,962.86x = 2,708.61 × 1,123.57
4. Step 4: Simplify right side
   1,962.86x = 3,043,302.20
5. Step 5: Solve for x
   x = 3,043,302.20/1,962.86
6. Step 6: Final answer
   x = 1,550.45