Finding the Fourth Proportional to 1,897.98, 2,848.42 and 803.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.98 : 2,848.42 = 803.12 : x
2. Step 2: Convert to fraction form
   1,897.98/2,848.42 = 803.12/x
3. Step 3: Cross multiply
   1,897.98x = 2,848.42 × 803.12
4. Step 4: Simplify right side
   1,897.98x = 2,287,605.31
5. Step 5: Solve for x
   x = 2,287,605.31/1,897.98
6. Step 6: Final answer
   x = 1,205.28