Finding the Fourth Proportional to 1,337.04, 1,846.80 and 1,212.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.04 : 1,846.80 = 1,212.30 : x
2. Step 2: Convert to fraction form
   1,337.04/1,846.80 = 1,212.30/x
3. Step 3: Cross multiply
   1,337.04x = 1,846.80 × 1,212.30
4. Step 4: Simplify right side
   1,337.04x = 2,238,875.64
5. Step 5: Solve for x
   x = 2,238,875.64/1,337.04
6. Step 6: Final answer
   x = 1,674.50