Finding the Fourth Proportional to 2,051.12, 3,072.72 and 1,587.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.12 : 3,072.72 = 1,587.26 : x
2. Step 2: Convert to fraction form
   2,051.12/3,072.72 = 1,587.26/x
3. Step 3: Cross multiply
   2,051.12x = 3,072.72 × 1,587.26
4. Step 4: Simplify right side
   2,051.12x = 4,877,205.55
5. Step 5: Solve for x
   x = 4,877,205.55/2,051.12
6. Step 6: Final answer
   x = 2,377.83