Finding the Fourth Proportional to 1,980.34, 2,973.24 and 1,007.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.34 : 2,973.24 = 1,007.12 : x
2. Step 2: Convert to fraction form
   1,980.34/2,973.24 = 1,007.12/x
3. Step 3: Cross multiply
   1,980.34x = 2,973.24 × 1,007.12
4. Step 4: Simplify right side
   1,980.34x = 2,994,409.47
5. Step 5: Solve for x
   x = 2,994,409.47/1,980.34
6. Step 6: Final answer
   x = 1,512.07