Finding the Fourth Proportional to 1,890.72, 2,602.32 and 1,516.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.72 : 2,602.32 = 1,516.56 : x
2. Step 2: Convert to fraction form
   1,890.72/2,602.32 = 1,516.56/x
3. Step 3: Cross multiply
   1,890.72x = 2,602.32 × 1,516.56
4. Step 4: Simplify right side
   1,890.72x = 3,946,574.42
5. Step 5: Solve for x
   x = 3,946,574.42/1,890.72
6. Step 6: Final answer
   x = 2,087.34