Finding the Fourth Proportional to 1,309,801.08, 1,807,554.78 and 800,784.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309,801.08 : 1,807,554.78 = 800,784.12 : x
2. Step 2: Convert to fraction form
   1,309,801.08/1,807,554.78 = 800,784.12/x
3. Step 3: Cross multiply
   1,309,801.08x = 1,807,554.78 × 800,784.12
4. Step 4: Simplify right side
   1,309,801.08x = 1,447,461,163,854.09
5. Step 5: Solve for x
   x = 1,447,461,163,854.09/1,309,801.08
6. Step 6: Final answer
   x = 1,105,099.99