Finding the Fourth Proportional to 1,897.07, 2,843.76 and 726.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.07 : 2,843.76 = 726.17 : x
2. Step 2: Convert to fraction form
   1,897.07/2,843.76 = 726.17/x
3. Step 3: Cross multiply
   1,897.07x = 2,843.76 × 726.17
4. Step 4: Simplify right side
   1,897.07x = 2,065,053.20
5. Step 5: Solve for x
   x = 2,065,053.20/1,897.07
6. Step 6: Final answer
   x = 1,088.55