Finding the Fourth Proportional to 2,322.42, 3,482.93 and 678.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.42 : 3,482.93 = 678.45 : x
2. Step 2: Convert to fraction form
   2,322.42/3,482.93 = 678.45/x
3. Step 3: Cross multiply
   2,322.42x = 3,482.93 × 678.45
4. Step 4: Simplify right side
   2,322.42x = 2,362,993.86
5. Step 5: Solve for x
   x = 2,362,993.86/2,322.42
6. Step 6: Final answer
   x = 1,017.47