Finding the Fourth Proportional to 1,985.01, 2,739.18 and 1,100.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.01 : 2,739.18 = 1,100.85 : x
2. Step 2: Convert to fraction form
   1,985.01/2,739.18 = 1,100.85/x
3. Step 3: Cross multiply
   1,985.01x = 2,739.18 × 1,100.85
4. Step 4: Simplify right side
   1,985.01x = 3,015,411.90
5. Step 5: Solve for x
   x = 3,015,411.90/1,985.01
6. Step 6: Final answer
   x = 1,519.09