Finding the Fourth Proportional to 2,345.76, 3,518.46 and 1,111.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.76 : 3,518.46 = 1,111.32 : x
2. Step 2: Convert to fraction form
   2,345.76/3,518.46 = 1,111.32/x
3. Step 3: Cross multiply
   2,345.76x = 3,518.46 × 1,111.32
4. Step 4: Simplify right side
   2,345.76x = 3,910,134.97
5. Step 5: Solve for x
   x = 3,910,134.97/2,345.76
6. Step 6: Final answer
   x = 1,666.89