Finding the Fourth Proportional to 2,030.58, 2,801.88 and 1,191.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.58 : 2,801.88 = 1,191.15 : x
2. Step 2: Convert to fraction form
   2,030.58/2,801.88 = 1,191.15/x
3. Step 3: Cross multiply
   2,030.58x = 2,801.88 × 1,191.15
4. Step 4: Simplify right side
   2,030.58x = 3,337,459.36
5. Step 5: Solve for x
   x = 3,337,459.36/2,030.58
6. Step 6: Final answer
   x = 1,643.60