Finding the Fourth Proportional to 2,811,978.72, 3,880,524.71 and 1,522,815.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,811,978.72 : 3,880,524.71 = 1,522,815.12 : x
2. Step 2: Convert to fraction form
   2,811,978.72/3,880,524.71 = 1,522,815.12/x
3. Step 3: Cross multiply
   2,811,978.72x = 3,880,524.71 × 1,522,815.12
4. Step 4: Simplify right side
   2,811,978.72x = 5,909,321,705,728.65
5. Step 5: Solve for x
   x = 5,909,321,705,728.65/2,811,978.72
6. Step 6: Final answer
   x = 2,101,481.66