Finding the Fourth Proportional to 2,430.36, 3,642.71 and 969.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430.36 : 3,642.71 = 969.93 : x
2. Step 2: Convert to fraction form
   2,430.36/3,642.71 = 969.93/x
3. Step 3: Cross multiply
   2,430.36x = 3,642.71 × 969.93
4. Step 4: Simplify right side
   2,430.36x = 3,533,168.86
5. Step 5: Solve for x
   x = 3,533,168.86/2,430.36
6. Step 6: Final answer
   x = 1,453.76