Finding the Fourth Proportional to 2,116.50, 3,174.72 and 1,283.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.50 : 3,174.72 = 1,283.76 : x
2. Step 2: Convert to fraction form
   2,116.50/3,174.72 = 1,283.76/x
3. Step 3: Cross multiply
   2,116.50x = 3,174.72 × 1,283.76
4. Step 4: Simplify right side
   2,116.50x = 4,075,578.55
5. Step 5: Solve for x
   x = 4,075,578.55/2,116.50
6. Step 6: Final answer
   x = 1,925.62