Finding the Fourth Proportional to 978,773.42, 1,468,157.33 and 268,802.15

Step by Step Solution

1. Step 1: Write the proportion equation
   978,773.42 : 1,468,157.33 = 268,802.15 : x
2. Step 2: Convert to fraction form
   978,773.42/1,468,157.33 = 268,802.15/x
3. Step 3: Cross multiply
   978,773.42x = 1,468,157.33 × 268,802.15
4. Step 4: Simplify right side
   978,773.42x = 394,643,840,173.48
5. Step 5: Solve for x
   x = 394,643,840,173.48/978,773.42
6. Step 6: Final answer
   x = 403,202.45