Finding the Fourth Proportional to 1,498.81, 2,069.63 and 940.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.81 : 2,069.63 = 940.21 : x
2. Step 2: Convert to fraction form
   1,498.81/2,069.63 = 940.21/x
3. Step 3: Cross multiply
   1,498.81x = 2,069.63 × 940.21
4. Step 4: Simplify right side
   1,498.81x = 1,945,886.82
5. Step 5: Solve for x
   x = 1,945,886.82/1,498.81
6. Step 6: Final answer
   x = 1,298.29