Finding the Fourth Proportional to 1,491.84, 2,238.12 and 722.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491.84 : 2,238.12 = 722.52 : x
2. Step 2: Convert to fraction form
   1,491.84/2,238.12 = 722.52/x
3. Step 3: Cross multiply
   1,491.84x = 2,238.12 × 722.52
4. Step 4: Simplify right side
   1,491.84x = 1,617,086.46
5. Step 5: Solve for x
   x = 1,617,086.46/1,491.84
6. Step 6: Final answer
   x = 1,083.95