Finding the Fourth Proportional to 1,237,978.50, 1,708,436.25 and 701,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,237,978.50 : 1,708,436.25 = 701,434.50 : x
2. Step 2: Convert to fraction form
   1,237,978.50/1,708,436.25 = 701,434.50/x
3. Step 3: Cross multiply
   1,237,978.50x = 1,708,436.25 × 701,434.50
4. Step 4: Simplify right side
   1,237,978.50x = 1,198,356,126,800.63
5. Step 5: Solve for x
   x = 1,198,356,126,800.63/1,237,978.50
6. Step 6: Final answer
   x = 967,994.30