Finding the Fourth Proportional to 1,722.05, 2,575.78 and 1,168.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.05 : 2,575.78 = 1,168.01 : x
2. Step 2: Convert to fraction form
   1,722.05/2,575.78 = 1,168.01/x
3. Step 3: Cross multiply
   1,722.05x = 2,575.78 × 1,168.01
4. Step 4: Simplify right side
   1,722.05x = 3,008,536.80
5. Step 5: Solve for x
   x = 3,008,536.80/1,722.05
6. Step 6: Final answer
   x = 1,747.07