Finding the Fourth Proportional to 1,762.91, 2,643.50 and 722.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,762.91 : 2,643.50 = 722.63 : x
2. Step 2: Convert to fraction form
   1,762.91/2,643.50 = 722.63/x
3. Step 3: Cross multiply
   1,762.91x = 2,643.50 × 722.63
4. Step 4: Simplify right side
   1,762.91x = 1,910,264.89
5. Step 5: Solve for x
   x = 1,910,264.89/1,762.91
6. Step 6: Final answer
   x = 1,083.59