Finding the Fourth Proportional to 3,636.34, 5,453.76 and 1,038.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.34 : 5,453.76 = 1,038.70 : x
2. Step 2: Convert to fraction form
   3,636.34/5,453.76 = 1,038.70/x
3. Step 3: Cross multiply
   3,636.34x = 5,453.76 × 1,038.70
4. Step 4: Simplify right side
   3,636.34x = 5,664,820.51
5. Step 5: Solve for x
   x = 5,664,820.51/3,636.34
6. Step 6: Final answer
   x = 1,557.84