Finding the Fourth Proportional to 2,152.99, 2,970.94 and 1,208.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.99 : 2,970.94 = 1,208.59 : x
2. Step 2: Convert to fraction form
   2,152.99/2,970.94 = 1,208.59/x
3. Step 3: Cross multiply
   2,152.99x = 2,970.94 × 1,208.59
4. Step 4: Simplify right side
   2,152.99x = 3,590,648.37
5. Step 5: Solve for x
   x = 3,590,648.37/2,152.99
6. Step 6: Final answer
   x = 1,667.75