Finding the Fourth Proportional to 1,570,636.92, 2,355,674.89 and 417,890.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570,636.92 : 2,355,674.89 = 417,890.10 : x
2. Step 2: Convert to fraction form
   1,570,636.92/2,355,674.89 = 417,890.10/x
3. Step 3: Cross multiply
   1,570,636.92x = 2,355,674.89 × 417,890.10
4. Step 4: Simplify right side
   1,570,636.92x = 984,413,215,349.59
5. Step 5: Solve for x
   x = 984,413,215,349.59/1,570,636.92
6. Step 6: Final answer
   x = 626,760.52