Finding the Fourth Proportional to 2,030.42, 2,802.58 and 1,191.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.42 : 2,802.58 = 1,191.30 : x
2. Step 2: Convert to fraction form
   2,030.42/2,802.58 = 1,191.30/x
3. Step 3: Cross multiply
   2,030.42x = 2,802.58 × 1,191.30
4. Step 4: Simplify right side
   2,030.42x = 3,338,713.55
5. Step 5: Solve for x
   x = 3,338,713.55/2,030.42
6. Step 6: Final answer
   x = 1,644.35