Finding the Fourth Proportional to 1,621,767.90, 2,238,086.42 and 896,662.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621,767.90 : 2,238,086.42 = 896,662.43 : x
2. Step 2: Convert to fraction form
   1,621,767.90/2,238,086.42 = 896,662.43/x
3. Step 3: Cross multiply
   1,621,767.90x = 2,238,086.42 × 896,662.43
4. Step 4: Simplify right side
   1,621,767.90x = 2,006,808,007,907.20
5. Step 5: Solve for x
   x = 2,006,808,007,907.20/1,621,767.90
6. Step 6: Final answer
   x = 1,237,419.98