Finding the Fourth Proportional to 2,111,312.86, 3,166,924.92 and 513,884.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111,312.86 : 3,166,924.92 = 513,884.86 : x
2. Step 2: Convert to fraction form
   2,111,312.86/3,166,924.92 = 513,884.86/x
3. Step 3: Cross multiply
   2,111,312.86x = 3,166,924.92 × 513,884.86
4. Step 4: Simplify right side
   2,111,312.86x = 1,627,434,769,144.71
5. Step 5: Solve for x
   x = 1,627,434,769,144.71/2,111,312.86
6. Step 6: Final answer
   x = 770,816.49