Finding the Fourth Proportional to 1,196.32, 1,653.06 and 1,147.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.32 : 1,653.06 = 1,147.72 : x
2. Step 2: Convert to fraction form
   1,196.32/1,653.06 = 1,147.72/x
3. Step 3: Cross multiply
   1,196.32x = 1,653.06 × 1,147.72
4. Step 4: Simplify right side
   1,196.32x = 1,897,250.02
5. Step 5: Solve for x
   x = 1,897,250.02/1,196.32
6. Step 6: Final answer
   x = 1,585.91