Finding the Fourth Proportional to 1,900.08, 2,621.45 and 1,152.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.08 : 2,621.45 = 1,152.75 : x
2. Step 2: Convert to fraction form
   1,900.08/2,621.45 = 1,152.75/x
3. Step 3: Cross multiply
   1,900.08x = 2,621.45 × 1,152.75
4. Step 4: Simplify right side
   1,900.08x = 3,021,870.72
5. Step 5: Solve for x
   x = 3,021,870.72/1,900.08
6. Step 6: Final answer
   x = 1,590.39