Finding the Fourth Proportional to 1,774.51, 2,448.72 and 988.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.51 : 2,448.72 = 988.54 : x
2. Step 2: Convert to fraction form
   1,774.51/2,448.72 = 988.54/x
3. Step 3: Cross multiply
   1,774.51x = 2,448.72 × 988.54
4. Step 4: Simplify right side
   1,774.51x = 2,420,651.55
5. Step 5: Solve for x
   x = 2,420,651.55/1,774.51
6. Step 6: Final answer
   x = 1,364.13