Finding the Fourth Proportional to 1,897.02, 2,843.58 and 726.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.02 : 2,843.58 = 726.71 : x
2. Step 2: Convert to fraction form
   1,897.02/2,843.58 = 726.71/x
3. Step 3: Cross multiply
   1,897.02x = 2,843.58 × 726.71
4. Step 4: Simplify right side
   1,897.02x = 2,066,444.49
5. Step 5: Solve for x
   x = 2,066,444.49/1,897.02
6. Step 6: Final answer
   x = 1,089.31