Finding the Fourth Proportional to 1,758.55, 2,637.59 and 784.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.55 : 2,637.59 = 784.42 : x
2. Step 2: Convert to fraction form
   1,758.55/2,637.59 = 784.42/x
3. Step 3: Cross multiply
   1,758.55x = 2,637.59 × 784.42
4. Step 4: Simplify right side
   1,758.55x = 2,068,978.35
5. Step 5: Solve for x
   x = 2,068,978.35/1,758.55
6. Step 6: Final answer
   x = 1,176.53