Finding the Fourth Proportional to 2,615.78, 3,925.04 and 1,155.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.78 : 3,925.04 = 1,155.93 : x
2. Step 2: Convert to fraction form
   2,615.78/3,925.04 = 1,155.93/x
3. Step 3: Cross multiply
   2,615.78x = 3,925.04 × 1,155.93
4. Step 4: Simplify right side
   2,615.78x = 4,537,065.71
5. Step 5: Solve for x
   x = 4,537,065.71/2,615.78
6. Step 6: Final answer
   x = 1,734.50