Finding the Fourth Proportional to 1,326.60, 1,987.98 and 595.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,326.60 : 1,987.98 = 595.72 : x
2. Step 2: Convert to fraction form
   1,326.60/1,987.98 = 595.72/x
3. Step 3: Cross multiply
   1,326.60x = 1,987.98 × 595.72
4. Step 4: Simplify right side
   1,326.60x = 1,184,279.45
5. Step 5: Solve for x
   x = 1,184,279.45/1,326.60
6. Step 6: Final answer
   x = 892.72