Finding the Fourth Proportional to 1,897.16, 2,618.17 and 1,057.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.16 : 2,618.17 = 1,057.93 : x
2. Step 2: Convert to fraction form
   1,897.16/2,618.17 = 1,057.93/x
3. Step 3: Cross multiply
   1,897.16x = 2,618.17 × 1,057.93
4. Step 4: Simplify right side
   1,897.16x = 2,769,831.40
5. Step 5: Solve for x
   x = 2,769,831.40/1,897.16
6. Step 6: Final answer
   x = 1,459.99