Finding the Fourth Proportional to 2,056.54, 3,085.01 and 575.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.54 : 3,085.01 = 575.76 : x
2. Step 2: Convert to fraction form
   2,056.54/3,085.01 = 575.76/x
3. Step 3: Cross multiply
   2,056.54x = 3,085.01 × 575.76
4. Step 4: Simplify right side
   2,056.54x = 1,776,222.48
5. Step 5: Solve for x
   x = 1,776,222.48/2,056.54
6. Step 6: Final answer
   x = 863.69