Finding the Fourth Proportional to 1,111.84, 1,666.12 and 534.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.84 : 1,666.12 = 534.04 : x
2. Step 2: Convert to fraction form
   1,111.84/1,666.12 = 534.04/x
3. Step 3: Cross multiply
   1,111.84x = 1,666.12 × 534.04
4. Step 4: Simplify right side
   1,111.84x = 889,774.72
5. Step 5: Solve for x
   x = 889,774.72/1,111.84
6. Step 6: Final answer
   x = 800.27