Finding the Fourth Proportional to 1,404,705.76, 2,106,972.12 and 865,064.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,705.76 : 2,106,972.12 = 865,064.86 : x
2. Step 2: Convert to fraction form
   1,404,705.76/2,106,972.12 = 865,064.86/x
3. Step 3: Cross multiply
   1,404,705.76x = 2,106,972.12 × 865,064.86
4. Step 4: Simplify right side
   1,404,705.76x = 1,822,667,542,011.70
5. Step 5: Solve for x
   x = 1,822,667,542,011.70/1,404,705.76
6. Step 6: Final answer
   x = 1,297,544.01