Finding the Fourth Proportional to 1,051.89, 1,577.50 and 358.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.89 : 1,577.50 = 358.42 : x
2. Step 2: Convert to fraction form
   1,051.89/1,577.50 = 358.42/x
3. Step 3: Cross multiply
   1,051.89x = 1,577.50 × 358.42
4. Step 4: Simplify right side
   1,051.89x = 565,407.55
5. Step 5: Solve for x
   x = 565,407.55/1,051.89
6. Step 6: Final answer
   x = 537.52