Finding the Fourth Proportional to 1,516.78, 2,273.82 and 1,381.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,516.78 : 2,273.82 = 1,381.33 : x
2. Step 2: Convert to fraction form
   1,516.78/2,273.82 = 1,381.33/x
3. Step 3: Cross multiply
   1,516.78x = 2,273.82 × 1,381.33
4. Step 4: Simplify right side
   1,516.78x = 3,140,895.78
5. Step 5: Solve for x
   x = 3,140,895.78/1,516.78
6. Step 6: Final answer
   x = 2,070.77