Finding the Fourth Proportional to 2,511.62, 3,768.24 and 1,051.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511.62 : 3,768.24 = 1,051.20 : x
2. Step 2: Convert to fraction form
   2,511.62/3,768.24 = 1,051.20/x
3. Step 3: Cross multiply
   2,511.62x = 3,768.24 × 1,051.20
4. Step 4: Simplify right side
   2,511.62x = 3,961,173.89
5. Step 5: Solve for x
   x = 3,961,173.89/2,511.62
6. Step 6: Final answer
   x = 1,577.14