Finding the Fourth Proportional to 1,222.08, 1,830.47 and 752.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.08 : 1,830.47 = 752.12 : x
2. Step 2: Convert to fraction form
   1,222.08/1,830.47 = 752.12/x
3. Step 3: Cross multiply
   1,222.08x = 1,830.47 × 752.12
4. Step 4: Simplify right side
   1,222.08x = 1,376,729.34
5. Step 5: Solve for x
   x = 1,376,729.34/1,222.08
6. Step 6: Final answer
   x = 1,126.55