Finding the Fourth Proportional to 1,198.52, 1,799.83 and 651.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198.52 : 1,799.83 = 651.77 : x
2. Step 2: Convert to fraction form
   1,198.52/1,799.83 = 651.77/x
3. Step 3: Cross multiply
   1,198.52x = 1,799.83 × 651.77
4. Step 4: Simplify right side
   1,198.52x = 1,173,075.20
5. Step 5: Solve for x
   x = 1,173,075.20/1,198.52
6. Step 6: Final answer
   x = 978.77