Finding the Fourth Proportional to 2,030.10, 2,801.48 and 1,145.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.10 : 2,801.48 = 1,145.76 : x
2. Step 2: Convert to fraction form
   2,030.10/2,801.48 = 1,145.76/x
3. Step 3: Cross multiply
   2,030.10x = 2,801.48 × 1,145.76
4. Step 4: Simplify right side
   2,030.10x = 3,209,823.72
5. Step 5: Solve for x
   x = 3,209,823.72/2,030.10
6. Step 6: Final answer
   x = 1,581.12