Finding the Fourth Proportional to 1,898,815.34, 2,620,366 and 1,039,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898,815.34 : 2,620,366 = 1,039,380.50 : x
2. Step 2: Convert to fraction form
   1,898,815.34/2,620,366 = 1,039,380.50/x
3. Step 3: Cross multiply
   1,898,815.34x = 2,620,366 × 1,039,380.50
4. Step 4: Simplify right side
   1,898,815.34x = 2,723,557,323,263
5. Step 5: Solve for x
   x = 2,723,557,323,263/1,898,815.34
6. Step 6: Final answer
   x = 1,434,345.54