Finding the Fourth Proportional to 1,985.10, 2,739.49 and 1,100.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.10 : 2,739.49 = 1,100.96 : x
2. Step 2: Convert to fraction form
   1,985.10/2,739.49 = 1,100.96/x
3. Step 3: Cross multiply
   1,985.10x = 2,739.49 × 1,100.96
4. Step 4: Simplify right side
   1,985.10x = 3,016,068.93
5. Step 5: Solve for x
   x = 3,016,068.93/1,985.10
6. Step 6: Final answer
   x = 1,519.35