Finding the Fourth Proportional to 1,100.12, 1,656.71 and 957.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.12 : 1,656.71 = 957.56 : x
2. Step 2: Convert to fraction form
   1,100.12/1,656.71 = 957.56/x
3. Step 3: Cross multiply
   1,100.12x = 1,656.71 × 957.56
4. Step 4: Simplify right side
   1,100.12x = 1,586,399.23
5. Step 5: Solve for x
   x = 1,586,399.23/1,100.12
6. Step 6: Final answer
   x = 1,442.02