Finding the Fourth Proportional to 1,900.10, 2,621.86 and 1,114.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.10 : 2,621.86 = 1,114.40 : x
2. Step 2: Convert to fraction form
   1,900.10/2,621.86 = 1,114.40/x
3. Step 3: Cross multiply
   1,900.10x = 2,621.86 × 1,114.40
4. Step 4: Simplify right side
   1,900.10x = 2,921,800.78
5. Step 5: Solve for x
   x = 2,921,800.78/1,900.10
6. Step 6: Final answer
   x = 1,537.71