Finding the Fourth Proportional to 2,056.56, 3,083.76 and 903.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.56 : 3,083.76 = 903.12 : x
2. Step 2: Convert to fraction form
   2,056.56/3,083.76 = 903.12/x
3. Step 3: Cross multiply
   2,056.56x = 3,083.76 × 903.12
4. Step 4: Simplify right side
   2,056.56x = 2,785,005.33
5. Step 5: Solve for x
   x = 2,785,005.33/2,056.56
6. Step 6: Final answer
   x = 1,354.21