Finding the Fourth Proportional to 2,254,586.72, 3,111,369.84 and 1,222,128.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254,586.72 : 3,111,369.84 = 1,222,128.32 : x
2. Step 2: Convert to fraction form
   2,254,586.72/3,111,369.84 = 1,222,128.32/x
3. Step 3: Cross multiply
   2,254,586.72x = 3,111,369.84 × 1,222,128.32
4. Step 4: Simplify right side
   2,254,586.72x = 3,802,493,195,457.87
5. Step 5: Solve for x
   x = 3,802,493,195,457.87/2,254,586.72
6. Step 6: Final answer
   x = 1,686,558.85