Finding the Fourth Proportional to 2,153.50, 2,971.35 and 1,269.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.50 : 2,971.35 = 1,269.34 : x
2. Step 2: Convert to fraction form
   2,153.50/2,971.35 = 1,269.34/x
3. Step 3: Cross multiply
   2,153.50x = 2,971.35 × 1,269.34
4. Step 4: Simplify right side
   2,153.50x = 3,771,653.41
5. Step 5: Solve for x
   x = 3,771,653.41/2,153.50
6. Step 6: Final answer
   x = 1,751.41