Finding the Fourth Proportional to 1,707.55, 2,562.72 and 886.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,707.55 : 2,562.72 = 886.07 : x
2. Step 2: Convert to fraction form
   1,707.55/2,562.72 = 886.07/x
3. Step 3: Cross multiply
   1,707.55x = 2,562.72 × 886.07
4. Step 4: Simplify right side
   1,707.55x = 2,270,749.31
5. Step 5: Solve for x
   x = 2,270,749.31/1,707.55
6. Step 6: Final answer
   x = 1,329.83