Finding the Fourth Proportional to 1,978.34, 2,742.59 and 1,873.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.34 : 2,742.59 = 1,873.00 : x
2. Step 2: Convert to fraction form
   1,978.34/2,742.59 = 1,873.00/x
3. Step 3: Cross multiply
   1,978.34x = 2,742.59 × 1,873.00
4. Step 4: Simplify right side
   1,978.34x = 5,136,883.50
5. Step 5: Solve for x
   x = 5,136,883.50/1,978.34
6. Step 6: Final answer
   x = 2,596.57