Finding the Fourth Proportional to 600,978.62, 901,328 and 281,351

Step by Step Solution

1. Step 1: Write the proportion equation
   600,978.62 : 901,328 = 281,351 : x
2. Step 2: Convert to fraction form
   600,978.62/901,328 = 281,351/x
3. Step 3: Cross multiply
   600,978.62x = 901,328 × 281,351
4. Step 4: Simplify right side
   600,978.62x = 253,589,534,128
5. Step 5: Solve for x
   x = 253,589,534,128/600,978.62
6. Step 6: Final answer
   x = 421,960.99