Finding the Fourth Proportional to 1,980.14, 2,969.33 and 1,055.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.14 : 2,969.33 = 1,055.52 : x
2. Step 2: Convert to fraction form
   1,980.14/2,969.33 = 1,055.52/x
3. Step 3: Cross multiply
   1,980.14x = 2,969.33 × 1,055.52
4. Step 4: Simplify right side
   1,980.14x = 3,134,181.92
5. Step 5: Solve for x
   x = 3,134,181.92/1,980.14
6. Step 6: Final answer
   x = 1,582.81