Finding the Fourth Proportional to 1,756.29, 2,426.89 and 1,670.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,756.29 : 2,426.89 = 1,670.87 : x
2. Step 2: Convert to fraction form
   1,756.29/2,426.89 = 1,670.87/x
3. Step 3: Cross multiply
   1,756.29x = 2,426.89 × 1,670.87
4. Step 4: Simplify right side
   1,756.29x = 4,055,017.69
5. Step 5: Solve for x
   x = 4,055,017.69/1,756.29
6. Step 6: Final answer
   x = 2,308.85