Finding the Fourth Proportional to 2,140.48, 2,953.80 and 1,196.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.48 : 2,953.80 = 1,196.28 : x
2. Step 2: Convert to fraction form
   2,140.48/2,953.80 = 1,196.28/x
3. Step 3: Cross multiply
   2,140.48x = 2,953.80 × 1,196.28
4. Step 4: Simplify right side
   2,140.48x = 3,533,565.27
5. Step 5: Solve for x
   x = 3,533,565.27/2,140.48
6. Step 6: Final answer
   x = 1,650.83