Finding the Fourth Proportional to 1,174.89, 1,620.30 and 975.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.89 : 1,620.30 = 975.41 : x
2. Step 2: Convert to fraction form
   1,174.89/1,620.30 = 975.41/x
3. Step 3: Cross multiply
   1,174.89x = 1,620.30 × 975.41
4. Step 4: Simplify right side
   1,174.89x = 1,580,448.72
5. Step 5: Solve for x
   x = 1,580,448.72/1,174.89
6. Step 6: Final answer
   x = 1,345.19