Finding the Fourth Proportional to 1,880, 2,592.72 and 1,216.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880 : 2,592.72 = 1,216.14 : x
2. Step 2: Convert to fraction form
   1,880/2,592.72 = 1,216.14/x
3. Step 3: Cross multiply
   1,880x = 2,592.72 × 1,216.14
4. Step 4: Simplify right side
   1,880x = 3,153,110.50
5. Step 5: Solve for x
   x = 3,153,110.50/1,880
6. Step 6: Final answer
   x = 1,677.19