Finding the Fourth Proportional to 1,622,410.42, 2,433,429.71 and 424,448.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622,410.42 : 2,433,429.71 = 424,448.34 : x
2. Step 2: Convert to fraction form
   1,622,410.42/2,433,429.71 = 424,448.34/x
3. Step 3: Cross multiply
   1,622,410.42x = 2,433,429.71 × 424,448.34
4. Step 4: Simplify right side
   1,622,410.42x = 1,032,865,200,916.18
5. Step 5: Solve for x
   x = 1,032,865,200,916.18/1,622,410.42
6. Step 6: Final answer
   x = 636,623.87