Finding the Fourth Proportional to 1,994.64, 2,990.89 and 761.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994.64 : 2,990.89 = 761.33 : x
2. Step 2: Convert to fraction form
   1,994.64/2,990.89 = 761.33/x
3. Step 3: Cross multiply
   1,994.64x = 2,990.89 × 761.33
4. Step 4: Simplify right side
   1,994.64x = 2,277,062.71
5. Step 5: Solve for x
   x = 2,277,062.71/1,994.64
6. Step 6: Final answer
   x = 1,141.59