Finding the Fourth Proportional to 1,500,665.51, 2,070,919.49 and 812,335.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500,665.51 : 2,070,919.49 = 812,335.20 : x
2. Step 2: Convert to fraction form
   1,500,665.51/2,070,919.49 = 812,335.20/x
3. Step 3: Cross multiply
   1,500,665.51x = 2,070,919.49 × 812,335.20
4. Step 4: Simplify right side
   1,500,665.51x = 1,682,280,794,031.37
5. Step 5: Solve for x
   x = 1,682,280,794,031.37/1,500,665.51
6. Step 6: Final answer
   x = 1,121,023.17