Finding the Fourth Proportional to 1,851.12, 2,554.52 and 1,011.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.12 : 2,554.52 = 1,011.82 : x
2. Step 2: Convert to fraction form
   1,851.12/2,554.52 = 1,011.82/x
3. Step 3: Cross multiply
   1,851.12x = 2,554.52 × 1,011.82
4. Step 4: Simplify right side
   1,851.12x = 2,584,714.43
5. Step 5: Solve for x
   x = 2,584,714.43/1,851.12
6. Step 6: Final answer
   x = 1,396.30