Finding the Fourth Proportional to 1,719.86, 2,373.35 and 973.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.86 : 2,373.35 = 973.76 : x
2. Step 2: Convert to fraction form
   1,719.86/2,373.35 = 973.76/x
3. Step 3: Cross multiply
   1,719.86x = 2,373.35 × 973.76
4. Step 4: Simplify right side
   1,719.86x = 2,311,056.56
5. Step 5: Solve for x
   x = 2,311,056.56/1,719.86
6. Step 6: Final answer
   x = 1,343.75