Finding the Fourth Proportional to 2,071.34, 3,101.54 and 1,248.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.34 : 3,101.54 = 1,248.50 : x
2. Step 2: Convert to fraction form
   2,071.34/3,101.54 = 1,248.50/x
3. Step 3: Cross multiply
   2,071.34x = 3,101.54 × 1,248.50
4. Step 4: Simplify right side
   2,071.34x = 3,872,272.69
5. Step 5: Solve for x
   x = 3,872,272.69/2,071.34
6. Step 6: Final answer
   x = 1,869.45