Finding the Fourth Proportional to 1,870.80, 2,803.92 and 1,323.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.80 : 2,803.92 = 1,323.14 : x
2. Step 2: Convert to fraction form
   1,870.80/2,803.92 = 1,323.14/x
3. Step 3: Cross multiply
   1,870.80x = 2,803.92 × 1,323.14
4. Step 4: Simplify right side
   1,870.80x = 3,709,959.73
5. Step 5: Solve for x
   x = 3,709,959.73/1,870.80
6. Step 6: Final answer
   x = 1,983.09