Finding the Fourth Proportional to 1,668.84, 2,303.28 and 970.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668.84 : 2,303.28 = 970.62 : x
2. Step 2: Convert to fraction form
   1,668.84/2,303.28 = 970.62/x
3. Step 3: Cross multiply
   1,668.84x = 2,303.28 × 970.62
4. Step 4: Simplify right side
   1,668.84x = 2,235,609.63
5. Step 5: Solve for x
   x = 2,235,609.63/1,668.84
6. Step 6: Final answer
   x = 1,339.62