Finding the Fourth Proportional to 1,851.21, 2,554.24 and 1,105.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.21 : 2,554.24 = 1,105.02 : x
2. Step 2: Convert to fraction form
   1,851.21/2,554.24 = 1,105.02/x
3. Step 3: Cross multiply
   1,851.21x = 2,554.24 × 1,105.02
4. Step 4: Simplify right side
   1,851.21x = 2,822,486.28
5. Step 5: Solve for x
   x = 2,822,486.28/1,851.21
6. Step 6: Final answer
   x = 1,524.67