Finding the Fourth Proportional to 1,354.56, 1,866.56 and 881.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.56 : 1,866.56 = 881.93 : x
2. Step 2: Convert to fraction form
   1,354.56/1,866.56 = 881.93/x
3. Step 3: Cross multiply
   1,354.56x = 1,866.56 × 881.93
4. Step 4: Simplify right side
   1,354.56x = 1,646,161.52
5. Step 5: Solve for x
   x = 1,646,161.52/1,354.56
6. Step 6: Final answer
   x = 1,215.27