Finding the Fourth Proportional to 1,493.89, 2,238.79 and 761.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.89 : 2,238.79 = 761.93 : x
2. Step 2: Convert to fraction form
   1,493.89/2,238.79 = 761.93/x
3. Step 3: Cross multiply
   1,493.89x = 2,238.79 × 761.93
4. Step 4: Simplify right side
   1,493.89x = 1,705,804.29
5. Step 5: Solve for x
   x = 1,705,804.29/1,493.89
6. Step 6: Final answer
   x = 1,141.85