Finding the Fourth Proportional to 1,383,971.35, 2,076,019.50 and 424,356.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383,971.35 : 2,076,019.50 = 424,356.86 : x
2. Step 2: Convert to fraction form
   1,383,971.35/2,076,019.50 = 424,356.86/x
3. Step 3: Cross multiply
   1,383,971.35x = 2,076,019.50 × 424,356.86
4. Step 4: Simplify right side
   1,383,971.35x = 880,973,103,816.89
5. Step 5: Solve for x
   x = 880,973,103,816.89/1,383,971.35
6. Step 6: Final answer
   x = 636,554.44