Finding the Fourth Proportional to 1,643.00, 2,468.14 and 1,591.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643.00 : 2,468.14 = 1,591.16 : x
2. Step 2: Convert to fraction form
   1,643.00/2,468.14 = 1,591.16/x
3. Step 3: Cross multiply
   1,643.00x = 2,468.14 × 1,591.16
4. Step 4: Simplify right side
   1,643.00x = 3,927,189.32
5. Step 5: Solve for x
   x = 3,927,189.32/1,643.00
6. Step 6: Final answer
   x = 2,390.26