Finding the Fourth Proportional to 2,030.12, 2,801.63 and 1,145.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.12 : 2,801.63 = 1,145.96 : x
2. Step 2: Convert to fraction form
   2,030.12/2,801.63 = 1,145.96/x
3. Step 3: Cross multiply
   2,030.12x = 2,801.63 × 1,145.96
4. Step 4: Simplify right side
   2,030.12x = 3,210,555.91
5. Step 5: Solve for x
   x = 3,210,555.91/2,030.12
6. Step 6: Final answer
   x = 1,581.46