Finding the Fourth Proportional to 1,091,336.01, 1,628,468.89 and 977,860.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091,336.01 : 1,628,468.89 = 977,860.27 : x
2. Step 2: Convert to fraction form
   1,091,336.01/1,628,468.89 = 977,860.27/x
3. Step 3: Cross multiply
   1,091,336.01x = 1,628,468.89 × 977,860.27
4. Step 4: Simplify right side
   1,091,336.01x = 1,592,415,028,462.00
5. Step 5: Solve for x
   x = 1,592,415,028,462.00/1,091,336.01
6. Step 6: Final answer
   x = 1,459,142.75