Finding the Fourth Proportional to 2,075.72, 2,863.32 and 1,328.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.72 : 2,863.32 = 1,328.18 : x
2. Step 2: Convert to fraction form
   2,075.72/2,863.32 = 1,328.18/x
3. Step 3: Cross multiply
   2,075.72x = 2,863.32 × 1,328.18
4. Step 4: Simplify right side
   2,075.72x = 3,803,004.36
5. Step 5: Solve for x
   x = 3,803,004.36/2,075.72
6. Step 6: Final answer
   x = 1,832.14