Finding the Fourth Proportional to 2,063,123.80, 3,094,685.70 and 643,168.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063,123.80 : 3,094,685.70 = 643,168.60 : x
2. Step 2: Convert to fraction form
   2,063,123.80/3,094,685.70 = 643,168.60/x
3. Step 3: Cross multiply
   2,063,123.80x = 3,094,685.70 × 643,168.60
4. Step 4: Simplify right side
   2,063,123.80x = 1,990,404,669,109.02
5. Step 5: Solve for x
   x = 1,990,404,669,109.02/2,063,123.80
6. Step 6: Final answer
   x = 964,752.90