Finding the Fourth Proportional to 2,109,928.86, 3,164,868.54 and 512,493.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109,928.86 : 3,164,868.54 = 512,493.42 : x
2. Step 2: Convert to fraction form
   2,109,928.86/3,164,868.54 = 512,493.42/x
3. Step 3: Cross multiply
   2,109,928.86x = 3,164,868.54 × 512,493.42
4. Step 4: Simplify right side
   2,109,928.86x = 1,621,974,301,915.01
5. Step 5: Solve for x
   x = 1,621,974,301,915.01/2,109,928.86
6. Step 6: Final answer
   x = 768,734.12