Finding the Fourth Proportional to 1,200.30, 1,802.21 and 740.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.30 : 1,802.21 = 740.01 : x
2. Step 2: Convert to fraction form
   1,200.30/1,802.21 = 740.01/x
3. Step 3: Cross multiply
   1,200.30x = 1,802.21 × 740.01
4. Step 4: Simplify right side
   1,200.30x = 1,333,653.42
5. Step 5: Solve for x
   x = 1,333,653.42/1,200.30
6. Step 6: Final answer
   x = 1,111.10