Finding the Fourth Proportional to 2,128.56, 2,937.24 and 1,197

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.56 : 2,937.24 = 1,197 : x
2. Step 2: Convert to fraction form
   2,128.56/2,937.24 = 1,197/x
3. Step 3: Cross multiply
   2,128.56x = 2,937.24 × 1,197
4. Step 4: Simplify right side
   2,128.56x = 3,515,876.28
5. Step 5: Solve for x
   x = 3,515,876.28/2,128.56
6. Step 6: Final answer
   x = 1,651.76