Finding the Fourth Proportional to 2,015,780.70, 3,020,171.85 and 1,305,443.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015,780.70 : 3,020,171.85 = 1,305,443.10 : x
2. Step 2: Convert to fraction form
   2,015,780.70/3,020,171.85 = 1,305,443.10/x
3. Step 3: Cross multiply
   2,015,780.70x = 3,020,171.85 × 1,305,443.10
4. Step 4: Simplify right side
   2,015,780.70x = 3,942,662,502,396.74
5. Step 5: Solve for x
   x = 3,942,662,502,396.74/2,015,780.70
6. Step 6: Final answer
   x = 1,955,898.53