Finding the Fourth Proportional to 1,897.98, 2,619.34 and 1,151.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.98 : 2,619.34 = 1,151.96 : x
2. Step 2: Convert to fraction form
   1,897.98/2,619.34 = 1,151.96/x
3. Step 3: Cross multiply
   1,897.98x = 2,619.34 × 1,151.96
4. Step 4: Simplify right side
   1,897.98x = 3,017,374.91
5. Step 5: Solve for x
   x = 3,017,374.91/1,897.98
6. Step 6: Final answer
   x = 1,589.78