Finding the Fourth Proportional to 1,987.83, 2,980.98 and 946.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,987.83 : 2,980.98 = 946.03 : x
2. Step 2: Convert to fraction form
   1,987.83/2,980.98 = 946.03/x
3. Step 3: Cross multiply
   1,987.83x = 2,980.98 × 946.03
4. Step 4: Simplify right side
   1,987.83x = 2,820,096.51
5. Step 5: Solve for x
   x = 2,820,096.51/1,987.83
6. Step 6: Final answer
   x = 1,418.68