Finding the Fourth Proportional to 2,020.04, 2,787.71 and 1,135.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.04 : 2,787.71 = 1,135.91 : x
2. Step 2: Convert to fraction form
   2,020.04/2,787.71 = 1,135.91/x
3. Step 3: Cross multiply
   2,020.04x = 2,787.71 × 1,135.91
4. Step 4: Simplify right side
   2,020.04x = 3,166,587.67
5. Step 5: Solve for x
   x = 3,166,587.67/2,020.04
6. Step 6: Final answer
   x = 1,567.59