Finding the Fourth Proportional to 2,103,288.01, 3,155,356.43 and 664,196.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103,288.01 : 3,155,356.43 = 664,196.15 : x
2. Step 2: Convert to fraction form
   2,103,288.01/3,155,356.43 = 664,196.15/x
3. Step 3: Cross multiply
   2,103,288.01x = 3,155,356.43 × 664,196.15
4. Step 4: Simplify right side
   2,103,288.01x = 2,095,775,592,683.74
5. Step 5: Solve for x
   x = 2,095,775,592,683.74/2,103,288.01
6. Step 6: Final answer
   x = 996,428.25