Finding the Fourth Proportional to 1,086,910.14, 1,499,979.15 and 628,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086,910.14 : 1,499,979.15 = 628,009.50 : x
2. Step 2: Convert to fraction form
   1,086,910.14/1,499,979.15 = 628,009.50/x
3. Step 3: Cross multiply
   1,086,910.14x = 1,499,979.15 × 628,009.50
4. Step 4: Simplify right side
   1,086,910.14x = 942,001,156,001.93
5. Step 5: Solve for x
   x = 942,001,156,001.93/1,086,910.14
6. Step 6: Final answer
   x = 866,678.05