Finding the Fourth Proportional to 1,114.56, 1,669.92 and 1,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.56 : 1,669.92 = 1,074.72 : x
2. Step 2: Convert to fraction form
   1,114.56/1,669.92 = 1,074.72/x
3. Step 3: Cross multiply
   1,114.56x = 1,669.92 × 1,074.72
4. Step 4: Simplify right side
   1,114.56x = 1,794,696.42
5. Step 5: Solve for x
   x = 1,794,696.42/1,114.56
6. Step 6: Final answer
   x = 1,610.23