Finding the Fourth Proportional to 1,494.01, 2,060.32 and 1,139.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.01 : 2,060.32 = 1,139.31 : x
2. Step 2: Convert to fraction form
   1,494.01/2,060.32 = 1,139.31/x
3. Step 3: Cross multiply
   1,494.01x = 2,060.32 × 1,139.31
4. Step 4: Simplify right side
   1,494.01x = 2,347,343.18
5. Step 5: Solve for x
   x = 2,347,343.18/1,494.01
6. Step 6: Final answer
   x = 1,571.17