Finding the Fourth Proportional to 686,600.56, 947,456.52 and 384,736.24

Step by Step Solution

1. Step 1: Write the proportion equation
   686,600.56 : 947,456.52 = 384,736.24 : x
2. Step 2: Convert to fraction form
   686,600.56/947,456.52 = 384,736.24/x
3. Step 3: Cross multiply
   686,600.56x = 947,456.52 × 384,736.24
4. Step 4: Simplify right side
   686,600.56x = 364,520,859,068.29
5. Step 5: Solve for x
   x = 364,520,859,068.29/686,600.56
6. Step 6: Final answer
   x = 530,906.73