Finding the Fourth Proportional to 2,113.37, 2,916.69 and 1,274.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.37 : 2,916.69 = 1,274.50 : x
2. Step 2: Convert to fraction form
   2,113.37/2,916.69 = 1,274.50/x
3. Step 3: Cross multiply
   2,113.37x = 2,916.69 × 1,274.50
4. Step 4: Simplify right side
   2,113.37x = 3,717,321.41
5. Step 5: Solve for x
   x = 3,717,321.41/2,113.37
6. Step 6: Final answer
   x = 1,758.96