Finding the Fourth Proportional to 1,111.12, 1,533.32 and 762

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.12 : 1,533.32 = 762 : x
2. Step 2: Convert to fraction form
   1,111.12/1,533.32 = 762/x
3. Step 3: Cross multiply
   1,111.12x = 1,533.32 × 762
4. Step 4: Simplify right side
   1,111.12x = 1,168,389.84
5. Step 5: Solve for x
   x = 1,168,389.84/1,111.12
6. Step 6: Final answer
   x = 1,051.54