Finding the Fourth Proportional to 1,422.87, 2,136.29 and 730.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.87 : 2,136.29 = 730.02 : x
2. Step 2: Convert to fraction form
   1,422.87/2,136.29 = 730.02/x
3. Step 3: Cross multiply
   1,422.87x = 2,136.29 × 730.02
4. Step 4: Simplify right side
   1,422.87x = 1,559,530.78
5. Step 5: Solve for x
   x = 1,559,530.78/1,422.87
6. Step 6: Final answer
   x = 1,096.05