Finding the Fourth Proportional to 671,624.72, 1,007,436 and 460,622.96

Step by Step Solution

1. Step 1: Write the proportion equation
   671,624.72 : 1,007,436 = 460,622.96 : x
2. Step 2: Convert to fraction form
   671,624.72/1,007,436 = 460,622.96/x
3. Step 3: Cross multiply
   671,624.72x = 1,007,436 × 460,622.96
4. Step 4: Simplify right side
   671,624.72x = 464,048,152,330.56
5. Step 5: Solve for x
   x = 464,048,152,330.56/671,624.72
6. Step 6: Final answer
   x = 690,933.70