Finding the Fourth Proportional to 1,370.84, 2,045.72 and 1,225.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.84 : 2,045.72 = 1,225.04 : x
2. Step 2: Convert to fraction form
   1,370.84/2,045.72 = 1,225.04/x
3. Step 3: Cross multiply
   1,370.84x = 2,045.72 × 1,225.04
4. Step 4: Simplify right side
   1,370.84x = 2,506,088.83
5. Step 5: Solve for x
   x = 2,506,088.83/1,370.84
6. Step 6: Final answer
   x = 1,828.14