Finding the Fourth Proportional to 1,587.42, 2,394.81 and 1,543.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587.42 : 2,394.81 = 1,543.68 : x
2. Step 2: Convert to fraction form
   1,587.42/2,394.81 = 1,543.68/x
3. Step 3: Cross multiply
   1,587.42x = 2,394.81 × 1,543.68
4. Step 4: Simplify right side
   1,587.42x = 3,696,820.30
5. Step 5: Solve for x
   x = 3,696,820.30/1,587.42
6. Step 6: Final answer
   x = 2,328.82