Finding the Fourth Proportional to 1,339.10, 1,848.01 and 814.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.10 : 1,848.01 = 814.76 : x
2. Step 2: Convert to fraction form
   1,339.10/1,848.01 = 814.76/x
3. Step 3: Cross multiply
   1,339.10x = 1,848.01 × 814.76
4. Step 4: Simplify right side
   1,339.10x = 1,505,684.63
5. Step 5: Solve for x
   x = 1,505,684.63/1,339.10
6. Step 6: Final answer
   x = 1,124.40