Finding the Fourth Proportional to 978,518.72, 1,467,924 and 347,379.68

Step by Step Solution

1. Step 1: Write the proportion equation
   978,518.72 : 1,467,924 = 347,379.68 : x
2. Step 2: Convert to fraction form
   978,518.72/1,467,924 = 347,379.68/x
3. Step 3: Cross multiply
   978,518.72x = 1,467,924 × 347,379.68
4. Step 4: Simplify right side
   978,518.72x = 509,926,969,384.32
5. Step 5: Solve for x
   x = 509,926,969,384.32/978,518.72
6. Step 6: Final answer
   x = 521,121.32