Finding the Fourth Proportional to 2,228.04, 3,075.72 and 1,590.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228.04 : 3,075.72 = 1,590.48 : x
2. Step 2: Convert to fraction form
   2,228.04/3,075.72 = 1,590.48/x
3. Step 3: Cross multiply
   2,228.04x = 3,075.72 × 1,590.48
4. Step 4: Simplify right side
   2,228.04x = 4,891,847.81
5. Step 5: Solve for x
   x = 4,891,847.81/2,228.04
6. Step 6: Final answer
   x = 2,195.59