Finding the Fourth Proportional to 1,899,069.76, 2,620,711.86 and 1,039,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,899,069.76 : 2,620,711.86 = 1,039,622.50 : x
2. Step 2: Convert to fraction form
   1,899,069.76/2,620,711.86 = 1,039,622.50/x
3. Step 3: Cross multiply
   1,899,069.76x = 2,620,711.86 × 1,039,622.50
4. Step 4: Simplify right side
   1,899,069.76x = 2,724,551,015,672.85
5. Step 5: Solve for x
   x = 2,724,551,015,672.85/1,899,069.76
6. Step 6: Final answer
   x = 1,434,676.64