Finding the Fourth Proportional to 1,486.14, 2,238.06 and 1,256.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,486.14 : 2,238.06 = 1,256.52 : x
2. Step 2: Convert to fraction form
   1,486.14/2,238.06 = 1,256.52/x
3. Step 3: Cross multiply
   1,486.14x = 2,238.06 × 1,256.52
4. Step 4: Simplify right side
   1,486.14x = 2,812,167.15
5. Step 5: Solve for x
   x = 2,812,167.15/1,486.14
6. Step 6: Final answer
   x = 1,892.26