Finding the Fourth Proportional to 2,356.80, 3,528.72 and 1,196.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.80 : 3,528.72 = 1,196.88 : x
2. Step 2: Convert to fraction form
   2,356.80/3,528.72 = 1,196.88/x
3. Step 3: Cross multiply
   2,356.80x = 3,528.72 × 1,196.88
4. Step 4: Simplify right side
   2,356.80x = 4,223,454.39
5. Step 5: Solve for x
   x = 4,223,454.39/2,356.80
6. Step 6: Final answer
   x = 1,792.03