Finding the Fourth Proportional to 1,543.84, 2,317.18 and 1,111.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,543.84 : 2,317.18 = 1,111.30 : x
2. Step 2: Convert to fraction form
   1,543.84/2,317.18 = 1,111.30/x
3. Step 3: Cross multiply
   1,543.84x = 2,317.18 × 1,111.30
4. Step 4: Simplify right side
   1,543.84x = 2,575,082.13
5. Step 5: Solve for x
   x = 2,575,082.13/1,543.84
6. Step 6: Final answer
   x = 1,667.97