Finding the Fourth Proportional to 1,123,321.96, 1,685,648.76 and 413,847.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,321.96 : 1,685,648.76 = 413,847.82 : x
2. Step 2: Convert to fraction form
   1,123,321.96/1,685,648.76 = 413,847.82/x
3. Step 3: Cross multiply
   1,123,321.96x = 1,685,648.76 × 413,847.82
4. Step 4: Simplify right side
   1,123,321.96x = 697,602,064,611.70
5. Step 5: Solve for x
   x = 697,602,064,611.70/1,123,321.96
6. Step 6: Final answer
   x = 621,017.03