Finding the Fourth Proportional to 1,091,327.57, 1,628,456.32 and 977,851.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091,327.57 : 1,628,456.32 = 977,851.83 : x
2. Step 2: Convert to fraction form
   1,091,327.57/1,628,456.32 = 977,851.83/x
3. Step 3: Cross multiply
   1,091,327.57x = 1,628,456.32 × 977,851.83
4. Step 4: Simplify right side
   1,091,327.57x = 1,592,388,992,587.07
5. Step 5: Solve for x
   x = 1,592,388,992,587.07/1,091,327.57
6. Step 6: Final answer
   x = 1,459,130.18