Finding the Fourth Proportional to 1,664,649.92, 2,297,200.56 and 900,686.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664,649.92 : 2,297,200.56 = 900,686.72 : x
2. Step 2: Convert to fraction form
   1,664,649.92/2,297,200.56 = 900,686.72/x
3. Step 3: Cross multiply
   1,664,649.92x = 2,297,200.56 × 900,686.72
4. Step 4: Simplify right side
   1,664,649.92x = 2,069,058,037,568.56
5. Step 5: Solve for x
   x = 2,069,058,037,568.56/1,664,649.92
6. Step 6: Final answer
   x = 1,242,938.84