Finding the Fourth Proportional to 2,551.40, 3,828.12 and 1,090.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.40 : 3,828.12 = 1,090.52 : x
2. Step 2: Convert to fraction form
   2,551.40/3,828.12 = 1,090.52/x
3. Step 3: Cross multiply
   2,551.40x = 3,828.12 × 1,090.52
4. Step 4: Simplify right side
   2,551.40x = 4,174,641.42
5. Step 5: Solve for x
   x = 4,174,641.42/2,551.40
6. Step 6: Final answer
   x = 1,636.22