Finding the Fourth Proportional to 1,200.98, 1,800.63 and 614.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.98 : 1,800.63 = 614.84 : x
2. Step 2: Convert to fraction form
   1,200.98/1,800.63 = 614.84/x
3. Step 3: Cross multiply
   1,200.98x = 1,800.63 × 614.84
4. Step 4: Simplify right side
   1,200.98x = 1,107,100.47
5. Step 5: Solve for x
   x = 1,107,100.47/1,200.98
6. Step 6: Final answer
   x = 921.83