Finding the Fourth Proportional to 1,123,614.37, 1,685,589.36 and 413,588.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,614.37 : 1,685,589.36 = 413,588.42 : x
2. Step 2: Convert to fraction form
   1,123,614.37/1,685,589.36 = 413,588.42/x
3. Step 3: Cross multiply
   1,123,614.37x = 1,685,589.36 × 413,588.42
4. Step 4: Simplify right side
   1,123,614.37x = 697,140,240,171.21
5. Step 5: Solve for x
   x = 697,140,240,171.21/1,123,614.37
6. Step 6: Final answer
   x = 620,444.40