Finding the Fourth Proportional to 2,925.31, 4,386.18 and 1,170.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,925.31 : 4,386.18 = 1,170.58 : x
2. Step 2: Convert to fraction form
   2,925.31/4,386.18 = 1,170.58/x
3. Step 3: Cross multiply
   2,925.31x = 4,386.18 × 1,170.58
4. Step 4: Simplify right side
   2,925.31x = 5,134,374.58
5. Step 5: Solve for x
   x = 5,134,374.58/2,925.31
6. Step 6: Final answer
   x = 1,755.16