Finding the Fourth Proportional to 1,980.04, 2,966.00 and 989.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.04 : 2,966.00 = 989.89 : x
2. Step 2: Convert to fraction form
   1,980.04/2,966.00 = 989.89/x
3. Step 3: Cross multiply
   1,980.04x = 2,966.00 × 989.89
4. Step 4: Simplify right side
   1,980.04x = 2,936,008.79
5. Step 5: Solve for x
   x = 2,936,008.79/1,980.04
6. Step 6: Final answer
   x = 1,482.80