Finding the Fourth Proportional to 2,030.36, 2,802.42 and 1,820.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.36 : 2,802.42 = 1,820.16 : x
2. Step 2: Convert to fraction form
   2,030.36/2,802.42 = 1,820.16/x
3. Step 3: Cross multiply
   2,030.36x = 2,802.42 × 1,820.16
4. Step 4: Simplify right side
   2,030.36x = 5,100,852.79
5. Step 5: Solve for x
   x = 5,100,852.79/2,030.36
6. Step 6: Final answer
   x = 2,512.30