Finding the Fourth Proportional to 1,851.29, 2,554.54 and 1,189.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.29 : 2,554.54 = 1,189.04 : x
2. Step 2: Convert to fraction form
   1,851.29/2,554.54 = 1,189.04/x
3. Step 3: Cross multiply
   1,851.29x = 2,554.54 × 1,189.04
4. Step 4: Simplify right side
   1,851.29x = 3,037,444.30
5. Step 5: Solve for x
   x = 3,037,444.30/1,851.29
6. Step 6: Final answer
   x = 1,640.72