Finding the Fourth Proportional to 3,685.82, 5,530.18 and 1,377.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685.82 : 5,530.18 = 1,377.50 : x
2. Step 2: Convert to fraction form
   3,685.82/5,530.18 = 1,377.50/x
3. Step 3: Cross multiply
   3,685.82x = 5,530.18 × 1,377.50
4. Step 4: Simplify right side
   3,685.82x = 7,617,822.95
5. Step 5: Solve for x
   x = 7,617,822.95/3,685.82
6. Step 6: Final answer
   x = 2,066.79