Finding the Fourth Proportional to 1,897.98, 2,619.48 and 1,582.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.98 : 2,619.48 = 1,582.80 : x
2. Step 2: Convert to fraction form
   1,897.98/2,619.48 = 1,582.80/x
3. Step 3: Cross multiply
   1,897.98x = 2,619.48 × 1,582.80
4. Step 4: Simplify right side
   1,897.98x = 4,146,112.94
5. Step 5: Solve for x
   x = 4,146,112.94/1,897.98
6. Step 6: Final answer
   x = 2,184.49