Finding the Fourth Proportional to 1,502.32, 2,073.73 and 991.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.32 : 2,073.73 = 991.34 : x
2. Step 2: Convert to fraction form
   1,502.32/2,073.73 = 991.34/x
3. Step 3: Cross multiply
   1,502.32x = 2,073.73 × 991.34
4. Step 4: Simplify right side
   1,502.32x = 2,055,771.50
5. Step 5: Solve for x
   x = 2,055,771.50/1,502.32
6. Step 6: Final answer
   x = 1,368.40