Finding the Fourth Proportional to 1,200.84, 1,799.40 and 624.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.84 : 1,799.40 = 624.12 : x
2. Step 2: Convert to fraction form
   1,200.84/1,799.40 = 624.12/x
3. Step 3: Cross multiply
   1,200.84x = 1,799.40 × 624.12
4. Step 4: Simplify right side
   1,200.84x = 1,123,041.53
5. Step 5: Solve for x
   x = 1,123,041.53/1,200.84
6. Step 6: Final answer
   x = 935.21