Finding the Fourth Proportional to 1,900.46, 2,621.45 and 1,153.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.46 : 2,621.45 = 1,153.69 : x
2. Step 2: Convert to fraction form
   1,900.46/2,621.45 = 1,153.69/x
3. Step 3: Cross multiply
   1,900.46x = 2,621.45 × 1,153.69
4. Step 4: Simplify right side
   1,900.46x = 3,024,321.77
5. Step 5: Solve for x
   x = 3,024,321.77/1,900.46
6. Step 6: Final answer
   x = 1,591.37