Finding the Fourth Proportional to 1,897.30, 2,617.86 and 1,151.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.30 : 2,617.86 = 1,151.11 : x
2. Step 2: Convert to fraction form
   1,897.30/2,617.86 = 1,151.11/x
3. Step 3: Cross multiply
   1,897.30x = 2,617.86 × 1,151.11
4. Step 4: Simplify right side
   1,897.30x = 3,013,444.82
5. Step 5: Solve for x
   x = 3,013,444.82/1,897.30
6. Step 6: Final answer
   x = 1,588.28