Finding the Fourth Proportional to 1,065,128.81, 1,469,887.83 and 606,220.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,128.81 : 1,469,887.83 = 606,220.88 : x
2. Step 2: Convert to fraction form
   1,065,128.81/1,469,887.83 = 606,220.88/x
3. Step 3: Cross multiply
   1,065,128.81x = 1,469,887.83 × 606,220.88
4. Step 4: Simplify right side
   1,065,128.81x = 891,076,686,454.45
5. Step 5: Solve for x
   x = 891,076,686,454.45/1,065,128.81
6. Step 6: Final answer
   x = 836,590.54