Finding the Fourth Proportional to 1,445,146.83, 2,167,196.67 and 485,315.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,146.83 : 2,167,196.67 = 485,315.28 : x
2. Step 2: Convert to fraction form
   1,445,146.83/2,167,196.67 = 485,315.28/x
3. Step 3: Cross multiply
   1,445,146.83x = 2,167,196.67 × 485,315.28
4. Step 4: Simplify right side
   1,445,146.83x = 1,051,773,658,716.12
5. Step 5: Solve for x
   x = 1,051,773,658,716.12/1,445,146.83
6. Step 6: Final answer
   x = 727,797.09