Finding the Fourth Proportional to 688,072.72, 949,562.50 and 382,152.78

Step by Step Solution

1. Step 1: Write the proportion equation
   688,072.72 : 949,562.50 = 382,152.78 : x
2. Step 2: Convert to fraction form
   688,072.72/949,562.50 = 382,152.78/x
3. Step 3: Cross multiply
   688,072.72x = 949,562.50 × 382,152.78
4. Step 4: Simplify right side
   688,072.72x = 362,877,949,158.75
5. Step 5: Solve for x
   x = 362,877,949,158.75/688,072.72
6. Step 6: Final answer
   x = 527,383.14