Finding the Fourth Proportional to 1,567.47, 2,345.72 and 1,155.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567.47 : 2,345.72 = 1,155.59 : x
2. Step 2: Convert to fraction form
   1,567.47/2,345.72 = 1,155.59/x
3. Step 3: Cross multiply
   1,567.47x = 2,345.72 × 1,155.59
4. Step 4: Simplify right side
   1,567.47x = 2,710,690.57
5. Step 5: Solve for x
   x = 2,710,690.57/1,567.47
6. Step 6: Final answer
   x = 1,729.34