Finding the Fourth Proportional to 2,906,928, 4,360,430.88 and 912,384

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906,928 : 4,360,430.88 = 912,384 : x
2. Step 2: Convert to fraction form
   2,906,928/4,360,430.88 = 912,384/x
3. Step 3: Cross multiply
   2,906,928x = 4,360,430.88 × 912,384
4. Step 4: Simplify right side
   2,906,928x = 3,978,387,368,017.92
5. Step 5: Solve for x
   x = 3,978,387,368,017.92/2,906,928
6. Step 6: Final answer
   x = 1,368,588.20