Finding the Fourth Proportional to 2,152.10, 2,970.18 and 1,267.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.10 : 2,970.18 = 1,267.89 : x
2. Step 2: Convert to fraction form
   2,152.10/2,970.18 = 1,267.89/x
3. Step 3: Cross multiply
   2,152.10x = 2,970.18 × 1,267.89
4. Step 4: Simplify right side
   2,152.10x = 3,765,861.52
5. Step 5: Solve for x
   x = 3,765,861.52/2,152.10
6. Step 6: Final answer
   x = 1,749.85