Finding the Fourth Proportional to 1,200,375.79, 1,798,564.61 and 844,642.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,375.79 : 1,798,564.61 = 844,642.46 : x
2. Step 2: Convert to fraction form
   1,200,375.79/1,798,564.61 = 844,642.46/x
3. Step 3: Cross multiply
   1,200,375.79x = 1,798,564.61 × 844,642.46
4. Step 4: Simplify right side
   1,200,375.79x = 1,519,144,023,443.31
5. Step 5: Solve for x
   x = 1,519,144,023,443.31/1,200,375.79
6. Step 6: Final answer
   x = 1,265,557.03