Finding the Fourth Proportional to 1,763.42, 2,644.91 and 972.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.42 : 2,644.91 = 972.01 : x
2. Step 2: Convert to fraction form
   1,763.42/2,644.91 = 972.01/x
3. Step 3: Cross multiply
   1,763.42x = 2,644.91 × 972.01
4. Step 4: Simplify right side
   1,763.42x = 2,570,860.88
5. Step 5: Solve for x
   x = 2,570,860.88/1,763.42
6. Step 6: Final answer
   x = 1,457.88