Finding the Fourth Proportional to 2,153.75, 2,971.94 and 1,269.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.75 : 2,971.94 = 1,269.45 : x
2. Step 2: Convert to fraction form
   2,153.75/2,971.94 = 1,269.45/x
3. Step 3: Cross multiply
   2,153.75x = 2,971.94 × 1,269.45
4. Step 4: Simplify right side
   2,153.75x = 3,772,722.89
5. Step 5: Solve for x
   x = 3,772,722.89/2,153.75
6. Step 6: Final answer
   x = 1,751.70