Finding the Fourth Proportional to 2,217.34, 3,059.15 and 1,377.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.34 : 3,059.15 = 1,377.17 : x
2. Step 2: Convert to fraction form
   2,217.34/3,059.15 = 1,377.17/x
3. Step 3: Cross multiply
   2,217.34x = 3,059.15 × 1,377.17
4. Step 4: Simplify right side
   2,217.34x = 4,212,969.61
5. Step 5: Solve for x
   x = 4,212,969.61/2,217.34
6. Step 6: Final answer
   x = 1,900.01