Finding the Fourth Proportional to 584,670.72, 806,846.40 and 316,398.72

Step by Step Solution

1. Step 1: Write the proportion equation
   584,670.72 : 806,846.40 = 316,398.72 : x
2. Step 2: Convert to fraction form
   584,670.72/806,846.40 = 316,398.72/x
3. Step 3: Cross multiply
   584,670.72x = 806,846.40 × 316,398.72
4. Step 4: Simplify right side
   584,670.72x = 255,285,168,196.61
5. Step 5: Solve for x
   x = 255,285,168,196.61/584,670.72
6. Step 6: Final answer
   x = 436,630.67