Finding the Fourth Proportional to 1,500.51, 2,070.12 and 870.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.51 : 2,070.12 = 870.93 : x
2. Step 2: Convert to fraction form
   1,500.51/2,070.12 = 870.93/x
3. Step 3: Cross multiply
   1,500.51x = 2,070.12 × 870.93
4. Step 4: Simplify right side
   1,500.51x = 1,802,929.61
5. Step 5: Solve for x
   x = 1,802,929.61/1,500.51
6. Step 6: Final answer
   x = 1,201.54