Finding the Fourth Proportional to 1,686,568.86, 2,327,457.72 and 912,200.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,568.86 : 2,327,457.72 = 912,200.49 : x
2. Step 2: Convert to fraction form
   1,686,568.86/2,327,457.72 = 912,200.49/x
3. Step 3: Cross multiply
   1,686,568.86x = 2,327,457.72 × 912,200.49
4. Step 4: Simplify right side
   1,686,568.86x = 2,123,108,072,638.28
5. Step 5: Solve for x
   x = 2,123,108,072,638.28/1,686,568.86
6. Step 6: Final answer
   x = 1,258,832.72