Finding the Fourth Proportional to 1,591.86, 2,200.59 and 1,407.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.86 : 2,200.59 = 1,407.18 : x
2. Step 2: Convert to fraction form
   1,591.86/2,200.59 = 1,407.18/x
3. Step 3: Cross multiply
   1,591.86x = 2,200.59 × 1,407.18
4. Step 4: Simplify right side
   1,591.86x = 3,096,626.24
5. Step 5: Solve for x
   x = 3,096,626.24/1,591.86
6. Step 6: Final answer
   x = 1,945.29