Finding the Fourth Proportional to 1,284,991.50, 1,773,327.15 and 711,978.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284,991.50 : 1,773,327.15 = 711,978.06 : x
2. Step 2: Convert to fraction form
   1,284,991.50/1,773,327.15 = 711,978.06/x
3. Step 3: Cross multiply
   1,284,991.50x = 1,773,327.15 × 711,978.06
4. Step 4: Simplify right side
   1,284,991.50x = 1,262,570,024,002.33
5. Step 5: Solve for x
   x = 1,262,570,024,002.33/1,284,991.50
6. Step 6: Final answer
   x = 982,551.27