Finding the Fourth Proportional to 2,978.04, 4,465.72 and 1,591.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.04 : 4,465.72 = 1,591.10 : x
2. Step 2: Convert to fraction form
   2,978.04/4,465.72 = 1,591.10/x
3. Step 3: Cross multiply
   2,978.04x = 4,465.72 × 1,591.10
4. Step 4: Simplify right side
   2,978.04x = 7,105,407.09
5. Step 5: Solve for x
   x = 7,105,407.09/2,978.04
6. Step 6: Final answer
   x = 2,385.93