Finding the Fourth Proportional to 2,113.48, 2,914.83 and 1,583.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.48 : 2,914.83 = 1,583.61 : x
2. Step 2: Convert to fraction form
   2,113.48/2,914.83 = 1,583.61/x
3. Step 3: Cross multiply
   2,113.48x = 2,914.83 × 1,583.61
4. Step 4: Simplify right side
   2,113.48x = 4,615,953.94
5. Step 5: Solve for x
   x = 4,615,953.94/2,113.48
6. Step 6: Final answer
   x = 2,184.05