Finding the Fourth Proportional to 2,056.02, 2,836.56 and 1,391.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.02 : 2,836.56 = 1,391.82 : x
2. Step 2: Convert to fraction form
   2,056.02/2,836.56 = 1,391.82/x
3. Step 3: Cross multiply
   2,056.02x = 2,836.56 × 1,391.82
4. Step 4: Simplify right side
   2,056.02x = 3,947,980.94
5. Step 5: Solve for x
   x = 3,947,980.94/2,056.02
6. Step 6: Final answer
   x = 1,920.21