Finding the Fourth Proportional to 1,805.30, 2,711.04 and 1,116.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.30 : 2,711.04 = 1,116.05 : x
2. Step 2: Convert to fraction form
   1,805.30/2,711.04 = 1,116.05/x
3. Step 3: Cross multiply
   1,805.30x = 2,711.04 × 1,116.05
4. Step 4: Simplify right side
   1,805.30x = 3,025,638.45
5. Step 5: Solve for x
   x = 3,025,638.45/1,805.30
6. Step 6: Final answer
   x = 1,675.98