Finding the Fourth Proportional to 1,383,300.72, 1,908,666.27 and 839,722.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383,300.72 : 1,908,666.27 = 839,722.68 : x
2. Step 2: Convert to fraction form
   1,383,300.72/1,908,666.27 = 839,722.68/x
3. Step 3: Cross multiply
   1,383,300.72x = 1,908,666.27 × 839,722.68
4. Step 4: Simplify right side
   1,383,300.72x = 1,602,750,355,470.00
5. Step 5: Solve for x
   x = 1,602,750,355,470.00/1,383,300.72
6. Step 6: Final answer
   x = 1,158,642.03