Finding the Fourth Proportional to 1,269.88, 1,751.47 and 1,071.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,269.88 : 1,751.47 = 1,071.83 : x
2. Step 2: Convert to fraction form
   1,269.88/1,751.47 = 1,071.83/x
3. Step 3: Cross multiply
   1,269.88x = 1,751.47 × 1,071.83
4. Step 4: Simplify right side
   1,269.88x = 1,877,285.82
5. Step 5: Solve for x
   x = 1,877,285.82/1,269.88
6. Step 6: Final answer
   x = 1,478.32