Finding the Fourth Proportional to 1,075.62, 1,612.71 and 498.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.62 : 1,612.71 = 498.18 : x
2. Step 2: Convert to fraction form
   1,075.62/1,612.71 = 498.18/x
3. Step 3: Cross multiply
   1,075.62x = 1,612.71 × 498.18
4. Step 4: Simplify right side
   1,075.62x = 803,419.87
5. Step 5: Solve for x
   x = 803,419.87/1,075.62
6. Step 6: Final answer
   x = 746.94