Finding the Fourth Proportional to 2,050.42, 3,075.28 and 817.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.42 : 3,075.28 = 817.50 : x
2. Step 2: Convert to fraction form
   2,050.42/3,075.28 = 817.50/x
3. Step 3: Cross multiply
   2,050.42x = 3,075.28 × 817.50
4. Step 4: Simplify right side
   2,050.42x = 2,514,027.82
5. Step 5: Solve for x
   x = 2,514,027.82/2,050.42
6. Step 6: Final answer
   x = 1,226.11