Finding the Fourth Proportional to 1,340,815.98, 1,850,333.28 and 789,555.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340,815.98 : 1,850,333.28 = 789,555.60 : x
2. Step 2: Convert to fraction form
   1,340,815.98/1,850,333.28 = 789,555.60/x
3. Step 3: Cross multiply
   1,340,815.98x = 1,850,333.28 × 789,555.60
4. Step 4: Simplify right side
   1,340,815.98x = 1,460,941,003,090.37
5. Step 5: Solve for x
   x = 1,460,941,003,090.37/1,340,815.98
6. Step 6: Final answer
   x = 1,089,590.98