Finding the Fourth Proportional to 1,897.64, 2,618.56 and 1,151.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.64 : 2,618.56 = 1,151.56 : x
2. Step 2: Convert to fraction form
   1,897.64/2,618.56 = 1,151.56/x
3. Step 3: Cross multiply
   1,897.64x = 2,618.56 × 1,151.56
4. Step 4: Simplify right side
   1,897.64x = 3,015,419.53
5. Step 5: Solve for x
   x = 3,015,419.53/1,897.64
6. Step 6: Final answer
   x = 1,589.03