Finding the Fourth Proportional to 1,819,687.72, 2,731,896.78 and 1,399,258.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,819,687.72 : 2,731,896.78 = 1,399,258.76 : x
2. Step 2: Convert to fraction form
   1,819,687.72/2,731,896.78 = 1,399,258.76/x
3. Step 3: Cross multiply
   1,819,687.72x = 2,731,896.78 × 1,399,258.76
4. Step 4: Simplify right side
   1,819,687.72x = 3,822,630,500,830.79
5. Step 5: Solve for x
   x = 3,822,630,500,830.79/1,819,687.72
6. Step 6: Final answer
   x = 2,100,706.87