Finding the Fourth Proportional to 2,784.10, 4,175.79 and 1,052.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.10 : 4,175.79 = 1,052.50 : x
2. Step 2: Convert to fraction form
   2,784.10/4,175.79 = 1,052.50/x
3. Step 3: Cross multiply
   2,784.10x = 4,175.79 × 1,052.50
4. Step 4: Simplify right side
   2,784.10x = 4,395,018.98
5. Step 5: Solve for x
   x = 4,395,018.98/2,784.10
6. Step 6: Final answer
   x = 1,578.61