Finding the Fourth Proportional to 1,859.86, 2,566.77 and 1,198.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.86 : 2,566.77 = 1,198.29 : x
2. Step 2: Convert to fraction form
   1,859.86/2,566.77 = 1,198.29/x
3. Step 3: Cross multiply
   1,859.86x = 2,566.77 × 1,198.29
4. Step 4: Simplify right side
   1,859.86x = 3,075,734.82
5. Step 5: Solve for x
   x = 3,075,734.82/1,859.86
6. Step 6: Final answer
   x = 1,653.75