Finding the Fourth Proportional to 2,111,920.28, 3,168,196.55 and 764,398.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111,920.28 : 3,168,196.55 = 764,398.16 : x
2. Step 2: Convert to fraction form
   2,111,920.28/3,168,196.55 = 764,398.16/x
3. Step 3: Cross multiply
   2,111,920.28x = 3,168,196.55 × 764,398.16
4. Step 4: Simplify right side
   2,111,920.28x = 2,421,763,593,675.37
5. Step 5: Solve for x
   x = 2,421,763,593,675.37/2,111,920.28
6. Step 6: Final answer
   x = 1,146,711.65