Finding the Fourth Proportional to 2,660,300.64, 3,992,040.72 and 977,574.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660,300.64 : 3,992,040.72 = 977,574.24 : x
2. Step 2: Convert to fraction form
   2,660,300.64/3,992,040.72 = 977,574.24/x
3. Step 3: Cross multiply
   2,660,300.64x = 3,992,040.72 × 977,574.24
4. Step 4: Simplify right side
   2,660,300.64x = 3,902,516,172,903.05
5. Step 5: Solve for x
   x = 3,902,516,172,903.05/2,660,300.64
6. Step 6: Final answer
   x = 1,466,945.55