Finding the Fourth Proportional to 1,494.51, 2,061.90 and 864.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.51 : 2,061.90 = 864.81 : x
2. Step 2: Convert to fraction form
   1,494.51/2,061.90 = 864.81/x
3. Step 3: Cross multiply
   1,494.51x = 2,061.90 × 864.81
4. Step 4: Simplify right side
   1,494.51x = 1,783,151.74
5. Step 5: Solve for x
   x = 1,783,151.74/1,494.51
6. Step 6: Final answer
   x = 1,193.13