Finding the Fourth Proportional to 2,181.68, 3,010.78 and 1,237.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.68 : 3,010.78 = 1,237.48 : x
2. Step 2: Convert to fraction form
   2,181.68/3,010.78 = 1,237.48/x
3. Step 3: Cross multiply
   2,181.68x = 3,010.78 × 1,237.48
4. Step 4: Simplify right side
   2,181.68x = 3,725,780.03
5. Step 5: Solve for x
   x = 3,725,780.03/2,181.68
6. Step 6: Final answer
   x = 1,707.76