Finding the Fourth Proportional to 1,895.80, 2,617.82 and 1,188.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,895.80 : 2,617.82 = 1,188.83 : x
2. Step 2: Convert to fraction form
   1,895.80/2,617.82 = 1,188.83/x
3. Step 3: Cross multiply
   1,895.80x = 2,617.82 × 1,188.83
4. Step 4: Simplify right side
   1,895.80x = 3,112,135.29
5. Step 5: Solve for x
   x = 3,112,135.29/1,895.80
6. Step 6: Final answer
   x = 1,641.59