Finding the Fourth Proportional to 1,615.79, 2,228.72 and 1,492.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.79 : 2,228.72 = 1,492.76 : x
2. Step 2: Convert to fraction form
   1,615.79/2,228.72 = 1,492.76/x
3. Step 3: Cross multiply
   1,615.79x = 2,228.72 × 1,492.76
4. Step 4: Simplify right side
   1,615.79x = 3,326,925.46
5. Step 5: Solve for x
   x = 3,326,925.46/1,615.79
6. Step 6: Final answer
   x = 2,059.01