Finding the Fourth Proportional to 740,300.18, 1,109,983.71 and 628,019.78

Step by Step Solution

1. Step 1: Write the proportion equation
   740,300.18 : 1,109,983.71 = 628,019.78 : x
2. Step 2: Convert to fraction form
   740,300.18/1,109,983.71 = 628,019.78/x
3. Step 3: Cross multiply
   740,300.18x = 1,109,983.71 × 628,019.78
4. Step 4: Simplify right side
   740,300.18x = 697,091,725,357.78
5. Step 5: Solve for x
   x = 697,091,725,357.78/740,300.18
6. Step 6: Final answer
   x = 941,633.87