Finding the Fourth Proportional to 2,207,820.29, 3,311,730.69 and 691,621.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,207,820.29 : 3,311,730.69 = 691,621.37 : x
2. Step 2: Convert to fraction form
   2,207,820.29/3,311,730.69 = 691,621.37/x
3. Step 3: Cross multiply
   2,207,820.29x = 3,311,730.69 × 691,621.37
4. Step 4: Simplify right side
   2,207,820.29x = 2,290,463,714,499.59
5. Step 5: Solve for x
   x = 2,290,463,714,499.59/2,207,820.29
6. Step 6: Final answer
   x = 1,037,432.13