Finding the Fourth Proportional to 1,925.30, 2,656.41 and 1,178.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.30 : 2,656.41 = 1,178.99 : x
2. Step 2: Convert to fraction form
   1,925.30/2,656.41 = 1,178.99/x
3. Step 3: Cross multiply
   1,925.30x = 2,656.41 × 1,178.99
4. Step 4: Simplify right side
   1,925.30x = 3,131,879.72
5. Step 5: Solve for x
   x = 3,131,879.72/1,925.30
6. Step 6: Final answer
   x = 1,626.69