Finding the Fourth Proportional to 2,231,388.56, 3,079,381.16 and 1,264,486.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231,388.56 : 3,079,381.16 = 1,264,486.70 : x
2. Step 2: Convert to fraction form
   2,231,388.56/3,079,381.16 = 1,264,486.70/x
3. Step 3: Cross multiply
   2,231,388.56x = 3,079,381.16 × 1,264,486.70
4. Step 4: Simplify right side
   2,231,388.56x = 3,893,836,514,588.72
5. Step 5: Solve for x
   x = 3,893,836,514,588.72/2,231,388.56
6. Step 6: Final answer
   x = 1,745,028.45