Finding the Fourth Proportional to 1,741.21, 2,402.20 and 1,111.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,741.21 : 2,402.20 = 1,111.76 : x
2. Step 2: Convert to fraction form
   1,741.21/2,402.20 = 1,111.76/x
3. Step 3: Cross multiply
   1,741.21x = 2,402.20 × 1,111.76
4. Step 4: Simplify right side
   1,741.21x = 2,670,669.87
5. Step 5: Solve for x
   x = 2,670,669.87/1,741.21
6. Step 6: Final answer
   x = 1,533.80