Finding the Fourth Proportional to 1,621.59, 2,428.17 and 1,360.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621.59 : 2,428.17 = 1,360.95 : x
2. Step 2: Convert to fraction form
   1,621.59/2,428.17 = 1,360.95/x
3. Step 3: Cross multiply
   1,621.59x = 2,428.17 × 1,360.95
4. Step 4: Simplify right side
   1,621.59x = 3,304,617.96
5. Step 5: Solve for x
   x = 3,304,617.96/1,621.59
6. Step 6: Final answer
   x = 2,037.89