Finding the Fourth Proportional to 1,897.50, 2,618.72 and 1,151.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.50 : 2,618.72 = 1,151.64 : x
2. Step 2: Convert to fraction form
   1,897.50/2,618.72 = 1,151.64/x
3. Step 3: Cross multiply
   1,897.50x = 2,618.72 × 1,151.64
4. Step 4: Simplify right side
   1,897.50x = 3,015,822.70
5. Step 5: Solve for x
   x = 3,015,822.70/1,897.50
6. Step 6: Final answer
   x = 1,589.37