Finding the Fourth Proportional to 2,587.37, 3,880.38 and 1,199.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.37 : 3,880.38 = 1,199.34 : x
2. Step 2: Convert to fraction form
   2,587.37/3,880.38 = 1,199.34/x
3. Step 3: Cross multiply
   2,587.37x = 3,880.38 × 1,199.34
4. Step 4: Simplify right side
   2,587.37x = 4,653,894.95
5. Step 5: Solve for x
   x = 4,653,894.95/2,587.37
6. Step 6: Final answer
   x = 1,798.70