Finding the Fourth Proportional to 1,123,320.96, 1,685,647.26 and 413,846.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,320.96 : 1,685,647.26 = 413,846.82 : x
2. Step 2: Convert to fraction form
   1,123,320.96/1,685,647.26 = 413,846.82/x
3. Step 3: Cross multiply
   1,123,320.96x = 1,685,647.26 × 413,846.82
4. Step 4: Simplify right side
   1,123,320.96x = 697,599,758,192.71
5. Step 5: Solve for x
   x = 697,599,758,192.71/1,123,320.96
6. Step 6: Final answer
   x = 621,015.53