Finding the Fourth Proportional to 1,768.58, 2,656.56 and 1,707.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.58 : 2,656.56 = 1,707.17 : x
2. Step 2: Convert to fraction form
   1,768.58/2,656.56 = 1,707.17/x
3. Step 3: Cross multiply
   1,768.58x = 2,656.56 × 1,707.17
4. Step 4: Simplify right side
   1,768.58x = 4,535,199.54
5. Step 5: Solve for x
   x = 4,535,199.54/1,768.58
6. Step 6: Final answer
   x = 2,564.32