Finding the Fourth Proportional to 1,748.88, 2,622.48 and 774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748.88 : 2,622.48 = 774.72 : x
2. Step 2: Convert to fraction form
   1,748.88/2,622.48 = 774.72/x
3. Step 3: Cross multiply
   1,748.88x = 2,622.48 × 774.72
4. Step 4: Simplify right side
   1,748.88x = 2,031,687.71
5. Step 5: Solve for x
   x = 2,031,687.71/1,748.88
6. Step 6: Final answer
   x = 1,161.71