Finding the Fourth Proportional to 1,985.67, 2,740.10 and 1,101.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.67 : 2,740.10 = 1,101.47 : x
2. Step 2: Convert to fraction form
   1,985.67/2,740.10 = 1,101.47/x
3. Step 3: Cross multiply
   1,985.67x = 2,740.10 × 1,101.47
4. Step 4: Simplify right side
   1,985.67x = 3,018,118.74
5. Step 5: Solve for x
   x = 3,018,118.74/1,985.67
6. Step 6: Final answer
   x = 1,519.95