Finding the Fourth Proportional to 1,002.19, 1,505.45 and 848.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.19 : 1,505.45 = 848.42 : x
2. Step 2: Convert to fraction form
   1,002.19/1,505.45 = 848.42/x
3. Step 3: Cross multiply
   1,002.19x = 1,505.45 × 848.42
4. Step 4: Simplify right side
   1,002.19x = 1,277,253.89
5. Step 5: Solve for x
   x = 1,277,253.89/1,002.19
6. Step 6: Final answer
   x = 1,274.46