Finding the Fourth Proportional to 1,529.42, 2,109.52 and 940.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,529.42 : 2,109.52 = 940.28 : x
2. Step 2: Convert to fraction form
   1,529.42/2,109.52 = 940.28/x
3. Step 3: Cross multiply
   1,529.42x = 2,109.52 × 940.28
4. Step 4: Simplify right side
   1,529.42x = 1,983,539.47
5. Step 5: Solve for x
   x = 1,983,539.47/1,529.42
6. Step 6: Final answer
   x = 1,296.92