Finding the Fourth Proportional to 1,985.59, 2,740.25 and 1,101.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.59 : 2,740.25 = 1,101.47 : x
2. Step 2: Convert to fraction form
   1,985.59/2,740.25 = 1,101.47/x
3. Step 3: Cross multiply
   1,985.59x = 2,740.25 × 1,101.47
4. Step 4: Simplify right side
   1,985.59x = 3,018,297.66
5. Step 5: Solve for x
   x = 3,018,297.66/1,985.59
6. Step 6: Final answer
   x = 1,520.10