Finding the Fourth Proportional to 2,990.05, 4,484.67 and 1,141.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,990.05 : 4,484.67 = 1,141.63 : x
2. Step 2: Convert to fraction form
   2,990.05/4,484.67 = 1,141.63/x
3. Step 3: Cross multiply
   2,990.05x = 4,484.67 × 1,141.63
4. Step 4: Simplify right side
   2,990.05x = 5,119,818.32
5. Step 5: Solve for x
   x = 5,119,818.32/2,990.05
6. Step 6: Final answer
   x = 1,712.29