Finding the Fourth Proportional to 5,092.31, 7,636.86 and 1,972.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,092.31 : 7,636.86 = 1,972.10 : x
2. Step 2: Convert to fraction form
   5,092.31/7,636.86 = 1,972.10/x
3. Step 3: Cross multiply
   5,092.31x = 7,636.86 × 1,972.10
4. Step 4: Simplify right side
   5,092.31x = 15,060,613.42
5. Step 5: Solve for x
   x = 15,060,613.42/5,092.31
6. Step 6: Final answer
   x = 2,957.52