Finding the Fourth Proportional to 1,705.68, 2,556.72 and 731.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.68 : 2,556.72 = 731.52 : x
2. Step 2: Convert to fraction form
   1,705.68/2,556.72 = 731.52/x
3. Step 3: Cross multiply
   1,705.68x = 2,556.72 × 731.52
4. Step 4: Simplify right side
   1,705.68x = 1,870,291.81
5. Step 5: Solve for x
   x = 1,870,291.81/1,705.68
6. Step 6: Final answer
   x = 1,096.51