Finding the Fourth Proportional to 1,985.91, 2,740.51 and 1,101.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.91 : 2,740.51 = 1,101.71 : x
2. Step 2: Convert to fraction form
   1,985.91/2,740.51 = 1,101.71/x
3. Step 3: Cross multiply
   1,985.91x = 2,740.51 × 1,101.71
4. Step 4: Simplify right side
   1,985.91x = 3,019,247.27
5. Step 5: Solve for x
   x = 3,019,247.27/1,985.91
6. Step 6: Final answer
   x = 1,520.33