Finding the Fourth Proportional to 1,892.76, 2,838.10 and 722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.76 : 2,838.10 = 722.72 : x
2. Step 2: Convert to fraction form
   1,892.76/2,838.10 = 722.72/x
3. Step 3: Cross multiply
   1,892.76x = 2,838.10 × 722.72
4. Step 4: Simplify right side
   1,892.76x = 2,051,151.63
5. Step 5: Solve for x
   x = 2,051,151.63/1,892.76
6. Step 6: Final answer
   x = 1,083.68