Finding the Fourth Proportional to 1,665.42, 2,297.88 and 1,075.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.42 : 2,297.88 = 1,075.83 : x
2. Step 2: Convert to fraction form
   1,665.42/2,297.88 = 1,075.83/x
3. Step 3: Cross multiply
   1,665.42x = 2,297.88 × 1,075.83
4. Step 4: Simplify right side
   1,665.42x = 2,472,128.24
5. Step 5: Solve for x
   x = 2,472,128.24/1,665.42
6. Step 6: Final answer
   x = 1,484.39