Finding the Fourth Proportional to 1,748.42, 2,622.79 and 722.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748.42 : 2,622.79 = 722.50 : x
2. Step 2: Convert to fraction form
   1,748.42/2,622.79 = 722.50/x
3. Step 3: Cross multiply
   1,748.42x = 2,622.79 × 722.50
4. Step 4: Simplify right side
   1,748.42x = 1,894,965.78
5. Step 5: Solve for x
   x = 1,894,965.78/1,748.42
6. Step 6: Final answer
   x = 1,083.82