Finding the Fourth Proportional to 1,855,499.96, 2,560,599.78 and 1,039,705.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855,499.96 : 2,560,599.78 = 1,039,705.40 : x
2. Step 2: Convert to fraction form
   1,855,499.96/2,560,599.78 = 1,039,705.40/x
3. Step 3: Cross multiply
   1,855,499.96x = 2,560,599.78 × 1,039,705.40
4. Step 4: Simplify right side
   1,855,499.96x = 2,662,269,418,504.81
5. Step 5: Solve for x
   x = 2,662,269,418,504.81/1,855,499.96
6. Step 6: Final answer
   x = 1,434,798.96