Finding the Fourth Proportional to 1,375.81, 2,053.00 and 1,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.81 : 2,053.00 = 1,322.50 : x
2. Step 2: Convert to fraction form
   1,375.81/2,053.00 = 1,322.50/x
3. Step 3: Cross multiply
   1,375.81x = 2,053.00 × 1,322.50
4. Step 4: Simplify right side
   1,375.81x = 2,715,075.62
5. Step 5: Solve for x
   x = 2,715,075.62/1,375.81
6. Step 6: Final answer
   x = 1,973.45