Finding the Fourth Proportional to 2,152.54, 2,970.52 and 1,208.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.54 : 2,970.52 = 1,208.35 : x
2. Step 2: Convert to fraction form
   2,152.54/2,970.52 = 1,208.35/x
3. Step 3: Cross multiply
   2,152.54x = 2,970.52 × 1,208.35
4. Step 4: Simplify right side
   2,152.54x = 3,589,427.84
5. Step 5: Solve for x
   x = 3,589,427.84/2,152.54
6. Step 6: Final answer
   x = 1,667.53