Finding the Fourth Proportional to 2,037.90, 2,812.28 and 1,106.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,037.90 : 2,812.28 = 1,106.40 : x
2. Step 2: Convert to fraction form
   2,037.90/2,812.28 = 1,106.40/x
3. Step 3: Cross multiply
   2,037.90x = 2,812.28 × 1,106.40
4. Step 4: Simplify right side
   2,037.90x = 3,111,506.59
5. Step 5: Solve for x
   x = 3,111,506.59/2,037.90
6. Step 6: Final answer
   x = 1,526.82