Finding the Fourth Proportional to 2,915,282.72, 4,373,770.16 and 1,209,113.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,915,282.72 : 4,373,770.16 = 1,209,113.12 : x
2. Step 2: Convert to fraction form
   2,915,282.72/4,373,770.16 = 1,209,113.12/x
3. Step 3: Cross multiply
   2,915,282.72x = 4,373,770.16 × 1,209,113.12
4. Step 4: Simplify right side
   2,915,282.72x = 5,288,382,884,320.50
5. Step 5: Solve for x
   x = 5,288,382,884,320.50/2,915,282.72
6. Step 6: Final answer
   x = 1,814,020.59