Finding the Fourth Proportional to 1,210.52, 1,670.82 and 744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210.52 : 1,670.82 = 744.50 : x
2. Step 2: Convert to fraction form
   1,210.52/1,670.82 = 744.50/x
3. Step 3: Cross multiply
   1,210.52x = 1,670.82 × 744.50
4. Step 4: Simplify right side
   1,210.52x = 1,243,925.49
5. Step 5: Solve for x
   x = 1,243,925.49/1,210.52
6. Step 6: Final answer
   x = 1,027.60